./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB --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 eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:12:47,575 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:12:47,671 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 05:12:47,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:12:47,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:12:47,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:12:47,714 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:12:47,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:12:47,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:12:47,716 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:12:47,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:12:47,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:12:47,717 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:12:47,717 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 05:12:47,717 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 05:12:47,717 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 05:12:47,717 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 05:12:47,718 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 05:12:47,718 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 05:12:47,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:12:47,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 05:12:47,719 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:12:47,719 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:12:47,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:12:47,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:12:47,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 05:12:47,720 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:12:47,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:12:47,721 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:12:47,721 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:12:47,721 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:12:47,721 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 05:12:47,721 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 05:12:47,722 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_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(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 -> eb57cc67b4a5d1052a722feccb00a81098424cf4bc0bbd7bfe756405ab740d43 [2024-11-28 05:12:48,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:12:48,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:12:48,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:12:48,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:12:48,142 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:12:48,144 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-28 05:12:51,952 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/data/92505142b/d80ee9d701a74c2680caf17e5d4adeee/FLAGdbd2273b5 [2024-11-28 05:12:52,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:12:52,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/sv-benchmarks/c/recursive-simple/fibo_2calls_5-2.c [2024-11-28 05:12:52,419 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/data/92505142b/d80ee9d701a74c2680caf17e5d4adeee/FLAGdbd2273b5 [2024-11-28 05:12:52,545 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/data/92505142b/d80ee9d701a74c2680caf17e5d4adeee [2024-11-28 05:12:52,550 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:12:52,553 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:12:52,559 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:12:52,559 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:12:52,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:12:52,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,575 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28887e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52, skipping insertion in model container [2024-11-28 05:12:52,575 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,598 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:12:52,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:12:52,827 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:12:52,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:12:52,866 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:12:52,866 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52 WrapperNode [2024-11-28 05:12:52,867 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:12:52,868 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:12:52,868 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:12:52,868 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:12:52,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,886 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,907 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-28 05:12:52,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:12:52,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:12:52,908 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:12:52,908 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:12:52,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,921 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,939 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 05:12:52,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,948 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,949 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,954 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,958 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:12:52,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:12:52,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:12:52,961 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:12:52,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (1/1) ... [2024-11-28 05:12:52,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:52,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:53,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:53,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 05:12:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:12:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:12:53,067 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-28 05:12:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-28 05:12:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-28 05:12:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-28 05:12:53,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:12:53,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:12:53,160 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:12:53,163 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:12:53,376 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-28 05:12:53,376 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:12:53,395 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:12:53,396 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-28 05:12:53,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:12:53 BoogieIcfgContainer [2024-11-28 05:12:53,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:12:53,398 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 05:12:53,398 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 05:12:53,406 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 05:12:53,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:12:53,407 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 05:12:52" (1/3) ... [2024-11-28 05:12:53,409 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@134fa90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:12:53, skipping insertion in model container [2024-11-28 05:12:53,411 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:12:53,412 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:12:52" (2/3) ... [2024-11-28 05:12:53,412 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@134fa90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 05:12:53, skipping insertion in model container [2024-11-28 05:12:53,412 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 05:12:53,413 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:12:53" (3/3) ... [2024-11-28 05:12:53,416 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_5-2.c [2024-11-28 05:12:53,502 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 05:12:53,504 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 05:12:53,504 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 05:12:53,505 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 05:12:53,505 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 05:12:53,505 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 05:12:53,505 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 05:12:53,505 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 05:12:53,515 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:12:53,548 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:53,548 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:12:53,548 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:12:53,556 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 05:12:53,556 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:53,556 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 05:12:53,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-28 05:12:53,561 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:53,561 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:12:53,561 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:12:53,562 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-28 05:12:53,562 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:53,574 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< [2024-11-28 05:12:53,575 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< [2024-11-28 05:12:53,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:53,587 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-11-28 05:12:53,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:53,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399465201] [2024-11-28 05:12:53,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:53,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,732 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:12:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:12:53,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:53,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-11-28 05:12:53,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:53,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857379666] [2024-11-28 05:12:53,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:53,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:53,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,779 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:12:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,789 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:12:53,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:53,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-11-28 05:12:53,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:53,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643068712] [2024-11-28 05:12:53,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:53,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:53,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,808 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:12:53,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:12:53,826 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:12:54,243 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:12:54,244 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:12:54,244 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:12:54,244 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:12:54,244 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:12:54,245 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,245 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:12:54,245 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:12:54,245 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration1_Loop [2024-11-28 05:12:54,245 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:12:54,246 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:12:54,265 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,283 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,291 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,296 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,487 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:12:54,488 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:12:54,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,500 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,500 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-28 05:12:54,528 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,529 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-28 05:12:54,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-28 05:12:54,551 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,553 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,575 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,576 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-28 05:12:54,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,594 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-28 05:12:54,599 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,599 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,620 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,620 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-11-28 05:12:54,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,642 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-28 05:12:54,648 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,649 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,671 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,671 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:54,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,688 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-28 05:12:54,694 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,695 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,716 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,716 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,729 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-28 05:12:54,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-28 05:12:54,743 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,743 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,767 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,767 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,780 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-11-28 05:12:54,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-28 05:12:54,791 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,791 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,818 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:12:54,818 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:12:54,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:54,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,835 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-28 05:12:54,841 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:12:54,841 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-28 05:12:54,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:54,877 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:54,879 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-28 05:12:54,881 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:12:54,882 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:12:54,953 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:12:54,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-11-28 05:12:54,957 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:12:54,957 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:12:54,957 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:12:54,957 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:12:54,958 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:12:54,958 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:54,958 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:12:54,958 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:12:54,958 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration1_Loop [2024-11-28 05:12:54,958 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:12:54,958 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:12:54,960 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,965 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,970 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,976 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,980 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:54,985 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:55,003 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:55,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:12:55,118 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:12:55,123 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:12:55,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,127 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-28 05:12:55,133 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 [2024-11-28 05:12:55,154 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,154 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,155 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,155 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,155 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,161 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,162 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,166 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:12:55,179 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:55,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,183 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-28 05:12:55,190 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 [2024-11-28 05:12:55,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,210 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,210 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,210 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,212 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,212 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,216 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:12:55,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Forceful destruction successful, exit code 0 [2024-11-28 05:12:55,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,231 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,259 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 [2024-11-28 05:12:55,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-28 05:12:55,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,285 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,285 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,285 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,286 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,286 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,289 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:12:55,301 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-28 05:12:55,301 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,304 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-28 05:12:55,307 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 [2024-11-28 05:12:55,322 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,322 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,322 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,322 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,322 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,323 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,323 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:12:55,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-28 05:12:55,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,345 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-28 05:12:55,349 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 [2024-11-28 05:12:55,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,371 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,371 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,374 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:12:55,387 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-28 05:12:55,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,391 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-28 05:12:55,396 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 [2024-11-28 05:12:55,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:12:55,415 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:12:55,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:12:55,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:12:55,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:12:55,418 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:12:55,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:12:55,422 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:12:55,428 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:12:55,432 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:12:55,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:12:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:55,438 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:12:55,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-28 05:12:55,444 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:12:55,444 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:12:55,444 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:12:55,445 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-28 05:12:55,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-28 05:12:55,465 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:12:55,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:55,539 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 05:12:55,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:55,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:55,606 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:12:55,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:55,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:12:55,788 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2024-11-28 05:12:55,790 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:12:56,052 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 27 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5). Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 77 states and 107 transitions. Complement of second has 28 states. [2024-11-28 05:12:56,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 1 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:12:56,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 3 states have call successors, (3), 2 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 05:12:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-28 05:12:56,069 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-28 05:12:56,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:12:56,071 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-28 05:12:56,071 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:12:56,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-28 05:12:56,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:12:56,073 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-11-28 05:12:56,081 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:56,093 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-11-28 05:12:56,095 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-28 05:12:56,095 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-28 05:12:56,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-28 05:12:56,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:12:56,096 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-28 05:12:56,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-28 05:12:56,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-28 05:12:56,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 38 states have internal predecessors, (47), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (13), 7 states have call predecessors, (13), 10 states have call successors, (13) [2024-11-28 05:12:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-28 05:12:56,134 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-28 05:12:56,135 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-28 05:12:56,135 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 05:12:56,135 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-11-28 05:12:56,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:56,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:12:56,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:12:56,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:56,139 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:56,139 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#48#return;" [2024-11-28 05:12:56,139 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#48#return;" [2024-11-28 05:12:56,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:56,140 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-11-28 05:12:56,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:56,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562018164] [2024-11-28 05:12:56,141 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:56,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:56,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:56,293 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-28 05:12:56,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:56,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:12:56,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562018164] [2024-11-28 05:12:56,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562018164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:56,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103785217] [2024-11-28 05:12:56,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:56,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:56,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:56,401 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:56,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 05:12:56,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:56,468 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:12:56,469 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:56,596 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:56,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103785217] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:56,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:56,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2024-11-28 05:12:56,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696413561] [2024-11-28 05:12:56,795 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:56,797 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:12:56,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:56,798 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-11-28 05:12:56,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:56,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539237412] [2024-11-28 05:12:56,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:56,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:56,888 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-28 05:12:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:56,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:12:56,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539237412] [2024-11-28 05:12:56,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539237412] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:56,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341547408] [2024-11-28 05:12:56,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:56,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:56,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:56,959 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:56,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 05:12:57,035 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-11-28 05:12:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:57,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 05:12:57,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:57,098 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:57,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341547408] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:57,205 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:57,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-28 05:12:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449823265] [2024-11-28 05:12:57,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:57,206 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:12:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:12:57,208 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:12:57,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:12:57,210 INFO L87 Difference]: Start difference. First operand 54 states and 72 transitions. cyclomatic complexity: 20 Second operand has 8 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 7 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:12:57,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:57,344 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-28 05:12:57,345 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-11-28 05:12:57,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:57,351 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-11-28 05:12:57,351 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-28 05:12:57,352 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-28 05:12:57,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-11-28 05:12:57,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:12:57,352 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-28 05:12:57,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-11-28 05:12:57,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-28 05:12:57,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 39 states have (on average 1.2564102564102564) internal successors, (49), 44 states have internal predecessors, (49), 12 states have call successors, (12), 8 states have call predecessors, (12), 9 states have return successors, (18), 7 states have call predecessors, (18), 10 states have call successors, (18) [2024-11-28 05:12:57,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-11-28 05:12:57,359 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-28 05:12:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:12:57,364 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-28 05:12:57,364 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 05:12:57,364 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-11-28 05:12:57,366 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:57,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:12:57,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:12:57,370 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:57,370 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [6, 5, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-28 05:12:57,370 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-28 05:12:57,371 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" [2024-11-28 05:12:57,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:57,371 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-11-28 05:12:57,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:57,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720033273] [2024-11-28 05:12:57,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:57,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:57,524 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-28 05:12:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:12:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720033273] [2024-11-28 05:12:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720033273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41501682] [2024-11-28 05:12:57,580 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:57,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:57,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:57,583 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:57,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 05:12:57,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:57,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:12:57,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:57,717 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:57,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41501682] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:57,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:57,937 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-28 05:12:57,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370229366] [2024-11-28 05:12:57,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:57,937 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:12:57,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:57,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1290736728, now seen corresponding path program 1 times [2024-11-28 05:12:57,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:57,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746513572] [2024-11-28 05:12:57,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:57,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:57,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,075 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-28 05:12:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,192 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:12:58,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,282 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:12:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,333 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:12:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,349 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-28 05:12:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,500 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:12:58,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,512 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:12:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:12:58,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746513572] [2024-11-28 05:12:58,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746513572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:58,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766794961] [2024-11-28 05:12:58,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:58,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:58,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:58,532 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:58,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 05:12:58,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:58,604 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:12:58,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:12:58,787 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:12:59,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766794961] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:12:59,483 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:12:59,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-28 05:12:59,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148634328] [2024-11-28 05:12:59,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:12:59,484 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:12:59,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:12:59,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:12:59,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:12:59,486 INFO L87 Difference]: Start difference. First operand 60 states and 79 transitions. cyclomatic complexity: 21 Second operand has 16 states, 13 states have (on average 1.9230769230769231) internal successors, (25), 11 states have internal predecessors, (25), 6 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-28 05:12:59,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:12:59,804 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2024-11-28 05:12:59,804 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 101 transitions. [2024-11-28 05:12:59,807 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:59,810 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 73 states and 93 transitions. [2024-11-28 05:12:59,810 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-11-28 05:12:59,810 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-11-28 05:12:59,810 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 93 transitions. [2024-11-28 05:12:59,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:12:59,811 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-28 05:12:59,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 93 transitions. [2024-11-28 05:12:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-28 05:12:59,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 47 states have (on average 1.2127659574468086) internal successors, (57), 52 states have internal predecessors, (57), 16 states have call successors, (16), 10 states have call predecessors, (16), 10 states have return successors, (20), 10 states have call predecessors, (20), 13 states have call successors, (20) [2024-11-28 05:12:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-11-28 05:12:59,819 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-28 05:12:59,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:12:59,821 INFO L425 stractBuchiCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-28 05:12:59,821 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 05:12:59,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 93 transitions. [2024-11-28 05:12:59,823 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:12:59,823 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:12:59,823 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:12:59,824 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:59,824 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:12:59,825 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< [2024-11-28 05:12:59,825 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< [2024-11-28 05:12:59,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:12:59,825 INFO L85 PathProgramCache]: Analyzing trace with hash -689987431, now seen corresponding path program 1 times [2024-11-28 05:12:59,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:12:59,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795225071] [2024-11-28 05:12:59,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:59,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:12:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:59,863 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-28 05:12:59,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:59,898 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:12:59,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:59,924 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-28 05:12:59,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:12:59,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:12:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795225071] [2024-11-28 05:12:59,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795225071] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:12:59,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1926277351] [2024-11-28 05:12:59,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:12:59,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:12:59,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:12:59,932 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:12:59,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 05:13:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:00,010 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:13:00,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:00,187 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:00,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1926277351] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:00,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:00,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 21 [2024-11-28 05:13:00,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340243581] [2024-11-28 05:13:00,603 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:00,605 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:00,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:00,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 2 times [2024-11-28 05:13:00,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:00,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671934338] [2024-11-28 05:13:00,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:00,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:00,616 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:00,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:00,623 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:00,792 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:00,793 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:00,793 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:00,793 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:00,793 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:00,793 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:00,793 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:00,793 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:00,793 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration4_Loop [2024-11-28 05:13:00,793 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:00,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:00,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,800 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,806 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,810 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,820 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,824 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:00,899 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:00,901 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:00,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:00,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:00,907 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:00,910 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-28 05:13:00,911 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:00,911 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:00,931 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:00,931 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:00,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-11-28 05:13:00,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:00,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:00,947 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:00,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-28 05:13:00,952 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:00,952 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:00,974 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:00,974 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:00,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:00,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:00,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:00,989 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:00,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-28 05:13:00,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:00,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:01,017 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:01,017 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:01,029 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-28 05:13:01,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,033 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-28 05:13:01,038 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:01,039 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:01,061 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:01,062 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:01,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:01,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,078 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,084 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:01,084 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:01,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-28 05:13:01,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-11-28 05:13:01,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,120 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-28 05:13:01,128 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:01,128 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:01,186 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:01,189 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:01,190 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:01,190 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:01,190 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:01,190 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:01,190 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:01,190 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,190 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:01,190 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:01,190 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration4_Loop [2024-11-28 05:13:01,190 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:01,190 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:01,192 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,194 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,197 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,202 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,211 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,214 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,217 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,221 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:01,291 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:01,291 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:01,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,293 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-28 05:13:01,296 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 [2024-11-28 05:13:01,310 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:01,310 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:01,310 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:01,310 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:01,311 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:01,311 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:01,311 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:01,314 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:01,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-11-28 05:13:01,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,324 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-28 05:13:01,327 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 [2024-11-28 05:13:01,340 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:01,340 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:01,341 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:01,341 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:01,341 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:01,342 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:01,342 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:01,348 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:01,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-28 05:13:01,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,362 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,367 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-28 05:13:01,368 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 [2024-11-28 05:13:01,384 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:01,384 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:01,384 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:01,384 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:01,384 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:01,385 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:01,385 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:01,392 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:01,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-28 05:13:01,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,405 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,411 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 [2024-11-28 05:13:01,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-28 05:13:01,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:01,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:01,433 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:01,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:01,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:01,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:01,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:01,442 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:01,446 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:13:01,447 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:13:01,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:01,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:01,452 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:01,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-28 05:13:01,455 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:01,455 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:01,455 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:01,456 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-28 05:13:01,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:01,468 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:01,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:01,560 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:13:01,562 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:01,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:01,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:02,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:02,050 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-28 05:13:02,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 73 states and 93 transitions. cyclomatic complexity: 22 Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 4 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:13:02,314 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 73 states and 93 transitions. cyclomatic complexity: 22. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 4 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 136 states and 179 transitions. Complement of second has 30 states. [2024-11-28 05:13:02,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 5 states have internal predecessors, (22), 4 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-28 05:13:02,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2024-11-28 05:13:02,317 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 28 letters. Loop has 8 letters. [2024-11-28 05:13:02,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:02,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-28 05:13:02,318 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:02,318 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 28 letters. Loop has 16 letters. [2024-11-28 05:13:02,319 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:02,319 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 179 transitions. [2024-11-28 05:13:02,324 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:13:02,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 122 states and 164 transitions. [2024-11-28 05:13:02,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2024-11-28 05:13:02,329 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2024-11-28 05:13:02,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 164 transitions. [2024-11-28 05:13:02,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:02,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 164 transitions. [2024-11-28 05:13:02,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 164 transitions. [2024-11-28 05:13:02,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2024-11-28 05:13:02,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.2567567567567568) internal successors, (93), 81 states have internal predecessors, (93), 23 states have call successors, (23), 16 states have call predecessors, (23), 16 states have return successors, (32), 15 states have call predecessors, (32), 20 states have call successors, (32) [2024-11-28 05:13:02,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2024-11-28 05:13:02,344 INFO L240 hiAutomatonCegarLoop]: Abstraction has 113 states and 148 transitions. [2024-11-28 05:13:02,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:02,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:13:02,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:13:02,345 INFO L87 Difference]: Start difference. First operand 113 states and 148 transitions. Second operand has 21 states, 18 states have (on average 2.388888888888889) internal successors, (43), 17 states have internal predecessors, (43), 12 states have call successors, (15), 6 states have call predecessors, (15), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-28 05:13:02,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:02,773 INFO L93 Difference]: Finished difference Result 127 states and 158 transitions. [2024-11-28 05:13:02,773 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 158 transitions. [2024-11-28 05:13:02,778 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:13:02,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 119 states and 150 transitions. [2024-11-28 05:13:02,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2024-11-28 05:13:02,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2024-11-28 05:13:02,788 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 150 transitions. [2024-11-28 05:13:02,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:02,788 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 150 transitions. [2024-11-28 05:13:02,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 150 transitions. [2024-11-28 05:13:02,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-28 05:13:02,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 75 states have (on average 1.2) internal successors, (90), 83 states have internal predecessors, (90), 23 states have call successors, (23), 16 states have call predecessors, (23), 17 states have return successors, (33), 15 states have call predecessors, (33), 20 states have call successors, (33) [2024-11-28 05:13:02,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 146 transitions. [2024-11-28 05:13:02,811 INFO L240 hiAutomatonCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-28 05:13:02,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:13:02,813 INFO L425 stractBuchiCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-28 05:13:02,813 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-28 05:13:02,813 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 146 transitions. [2024-11-28 05:13:02,818 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-28 05:13:02,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:02,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:02,831 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:02,833 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [10, 9, 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1] [2024-11-28 05:13:02,833 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(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" [2024-11-28 05:13:02,834 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" [2024-11-28 05:13:02,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:02,836 INFO L85 PathProgramCache]: Analyzing trace with hash 246620694, now seen corresponding path program 1 times [2024-11-28 05:13:02,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:02,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288553256] [2024-11-28 05:13:02,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:02,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,069 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-28 05:13:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,228 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,238 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:03,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,261 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,266 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:03,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:03,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288553256] [2024-11-28 05:13:03,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288553256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:03,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003193290] [2024-11-28 05:13:03,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:03,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:03,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:03,275 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:03,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-28 05:13:03,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:03,359 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 05:13:03,362 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:03,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:03,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2003193290] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:03,932 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:03,932 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-11-28 05:13:03,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766252429] [2024-11-28 05:13:03,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:03,933 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:03,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:03,934 INFO L85 PathProgramCache]: Analyzing trace with hash -1802681815, now seen corresponding path program 1 times [2024-11-28 05:13:03,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:03,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010554819] [2024-11-28 05:13:03,934 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:03,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-11-28 05:13:04,087 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-28 05:13:04,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,192 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,286 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,322 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,346 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,350 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:04,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,360 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,365 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:04,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,371 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-28 05:13:04,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,461 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,467 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,492 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,498 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,502 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,508 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-28 05:13:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:04,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010554819] [2024-11-28 05:13:04,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010554819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:04,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052596802] [2024-11-28 05:13:04,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:04,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:04,513 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:04,516 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:04,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-28 05:13:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:04,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:13:04,611 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:04,711 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:05,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052596802] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:05,174 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:05,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2024-11-28 05:13:05,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013714978] [2024-11-28 05:13:05,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:05,175 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 05:13:05,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:05,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 05:13:05,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:13:05,177 INFO L87 Difference]: Start difference. First operand 115 states and 146 transitions. cyclomatic complexity: 34 Second operand has 20 states, 17 states have (on average 2.4705882352941178) internal successors, (42), 15 states have internal predecessors, (42), 10 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (8), 4 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-28 05:13:05,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:05,678 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2024-11-28 05:13:05,678 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 148 transitions. [2024-11-28 05:13:05,683 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-28 05:13:05,689 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 121 states and 146 transitions. [2024-11-28 05:13:05,689 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2024-11-28 05:13:05,690 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2024-11-28 05:13:05,690 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 146 transitions. [2024-11-28 05:13:05,690 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:05,690 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 146 transitions. [2024-11-28 05:13:05,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 146 transitions. [2024-11-28 05:13:05,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2024-11-28 05:13:05,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 77 states have (on average 1.1948051948051948) internal successors, (92), 84 states have internal predecessors, (92), 23 states have call successors, (23), 17 states have call predecessors, (23), 17 states have return successors, (27), 15 states have call predecessors, (27), 20 states have call successors, (27) [2024-11-28 05:13:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-11-28 05:13:05,711 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-28 05:13:05,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 05:13:05,716 INFO L425 stractBuchiCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-28 05:13:05,720 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-28 05:13:05,720 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 142 transitions. [2024-11-28 05:13:05,721 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-28 05:13:05,721 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:05,721 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:05,723 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:05,723 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:05,727 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(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-28 05:13:05,727 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-28 05:13:05,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash -671318086, now seen corresponding path program 1 times [2024-11-28 05:13:05,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:05,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109619817] [2024-11-28 05:13:05,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:05,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:05,831 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-28 05:13:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:05,909 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:05,952 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:05,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:05,959 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-28 05:13:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:05,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109619817] [2024-11-28 05:13:05,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109619817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:05,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594543864] [2024-11-28 05:13:05,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:05,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:05,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:05,967 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:05,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-28 05:13:06,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:06,029 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:13:06,032 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:06,126 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:06,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594543864] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:06,398 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:06,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 16 [2024-11-28 05:13:06,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375424302] [2024-11-28 05:13:06,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:06,399 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:06,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:06,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2024-11-28 05:13:06,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:06,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898893022] [2024-11-28 05:13:06,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:06,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:06,404 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:06,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:06,635 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:06,635 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:06,636 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:06,636 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:06,636 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:06,636 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,636 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:06,636 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:06,636 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration6_Loop [2024-11-28 05:13:06,636 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:06,636 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:06,637 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,640 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,644 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,647 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,651 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,654 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,657 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,660 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,662 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:06,729 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:06,729 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:06,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,734 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-28 05:13:06,736 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,737 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,752 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,752 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-28 05:13:06,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,761 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-28 05:13:06,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,780 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,780 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-28 05:13:06,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,790 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-28 05:13:06,793 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,793 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,808 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,808 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-11-28 05:13:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,818 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-28 05:13:06,821 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,821 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,837 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,837 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=1} Honda state: {fibo2_#t~ret6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,844 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-11-28 05:13:06,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,846 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-28 05:13:06,849 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,850 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,865 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,865 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-11-28 05:13:06,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,875 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-28 05:13:06,878 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,878 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,893 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,893 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:06,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,905 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-28 05:13:06,908 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,909 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,924 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,924 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-11-28 05:13:06,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,933 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-28 05:13:06,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,952 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:06,952 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:06,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-28 05:13:06,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:06,962 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:06,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-28 05:13:06,965 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:06,965 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:06,995 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-28 05:13:06,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:06,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,000 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-28 05:13:07,004 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:07,005 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:07,028 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:07,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:07,040 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:07,040 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:07,040 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:07,040 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:07,040 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:07,040 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,041 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:07,041 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:07,041 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration6_Loop [2024-11-28 05:13:07,041 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:07,041 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:07,042 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,045 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,048 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,051 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,055 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,059 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,065 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,068 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:07,152 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:07,153 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:07,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,155 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-28 05:13:07,158 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 [2024-11-28 05:13:07,172 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,172 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,172 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,173 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,173 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,173 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,173 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,176 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-28 05:13:07,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,190 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-28 05:13:07,196 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 [2024-11-28 05:13:07,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,215 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,216 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,216 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,221 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:07,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,235 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-28 05:13:07,240 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 [2024-11-28 05:13:07,258 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,259 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,259 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,259 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,259 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,261 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,262 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,266 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:07,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,280 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-28 05:13:07,285 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 [2024-11-28 05:13:07,300 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,300 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,300 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,300 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,300 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,301 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,301 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,304 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-11-28 05:13:07,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,317 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-28 05:13:07,321 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 [2024-11-28 05:13:07,332 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,332 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,332 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,332 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,332 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,333 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,333 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,335 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-28 05:13:07,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,344 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-28 05:13:07,346 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 [2024-11-28 05:13:07,357 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,358 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,358 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,358 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,358 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,358 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,358 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,360 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:07,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,368 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-28 05:13:07,371 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 [2024-11-28 05:13:07,382 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,382 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,382 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,382 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,383 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,383 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,383 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,387 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-28 05:13:07,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,400 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-28 05:13:07,406 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 [2024-11-28 05:13:07,420 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,421 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,422 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,423 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:07,430 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-28 05:13:07,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,433 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-28 05:13:07,437 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 [2024-11-28 05:13:07,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:07,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:07,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:07,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:07,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:07,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:07,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:07,456 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:07,458 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 05:13:07,458 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:13:07,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:07,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:07,460 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:07,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-28 05:13:07,463 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:07,463 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:07,463 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:07,463 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-28 05:13:07,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-11-28 05:13:07,473 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:07,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:07,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:07,563 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:07,566 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:07,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:07,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:13:07,925 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:08,073 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:08,074 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-28 05:13:08,075 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 117 states and 142 transitions. cyclomatic complexity: 28 Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:08,662 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 117 states and 142 transitions. cyclomatic complexity: 28. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 344 states and 428 transitions. Complement of second has 48 states. [2024-11-28 05:13:08,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:08,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:08,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 67 transitions. [2024-11-28 05:13:08,665 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-28 05:13:08,665 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:08,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 56 letters. Loop has 14 letters. [2024-11-28 05:13:08,666 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:08,666 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 42 letters. Loop has 28 letters. [2024-11-28 05:13:08,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:08,667 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 344 states and 428 transitions. [2024-11-28 05:13:08,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2024-11-28 05:13:08,678 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 344 states to 221 states and 265 transitions. [2024-11-28 05:13:08,678 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2024-11-28 05:13:08,679 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2024-11-28 05:13:08,679 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 265 transitions. [2024-11-28 05:13:08,679 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:08,679 INFO L218 hiAutomatonCegarLoop]: Abstraction has 221 states and 265 transitions. [2024-11-28 05:13:08,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 265 transitions. [2024-11-28 05:13:08,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 201. [2024-11-28 05:13:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 135 states have (on average 1.1851851851851851) internal successors, (160), 147 states have internal predecessors, (160), 37 states have call successors, (38), 30 states have call predecessors, (38), 29 states have return successors, (43), 23 states have call predecessors, (43), 31 states have call successors, (43) [2024-11-28 05:13:08,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 241 transitions. [2024-11-28 05:13:08,692 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 241 transitions. [2024-11-28 05:13:08,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:08,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 05:13:08,693 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-28 05:13:08,693 INFO L87 Difference]: Start difference. First operand 201 states and 241 transitions. Second operand has 16 states, 14 states have (on average 3.142857142857143) internal successors, (44), 13 states have internal predecessors, (44), 9 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (8), 3 states have call predecessors, (8), 7 states have call successors, (8) [2024-11-28 05:13:09,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:09,050 INFO L93 Difference]: Finished difference Result 302 states and 389 transitions. [2024-11-28 05:13:09,050 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 389 transitions. [2024-11-28 05:13:09,056 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 44 [2024-11-28 05:13:09,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 263 states and 341 transitions. [2024-11-28 05:13:09,061 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2024-11-28 05:13:09,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2024-11-28 05:13:09,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 341 transitions. [2024-11-28 05:13:09,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:09,068 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 341 transitions. [2024-11-28 05:13:09,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 341 transitions. [2024-11-28 05:13:09,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 223. [2024-11-28 05:13:09,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 149 states have (on average 1.2080536912751678) internal successors, (180), 159 states have internal predecessors, (180), 46 states have call successors, (48), 35 states have call predecessors, (48), 28 states have return successors, (57), 28 states have call predecessors, (57), 37 states have call successors, (57) [2024-11-28 05:13:09,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2024-11-28 05:13:09,088 INFO L240 hiAutomatonCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-11-28 05:13:09,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:13:09,093 INFO L425 stractBuchiCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-11-28 05:13:09,097 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-28 05:13:09,097 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 285 transitions. [2024-11-28 05:13:09,099 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2024-11-28 05:13:09,099 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:09,099 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:09,100 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:09,100 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:09,100 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" [2024-11-28 05:13:09,100 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" [2024-11-28 05:13:09,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:09,101 INFO L85 PathProgramCache]: Analyzing trace with hash -25749769, now seen corresponding path program 1 times [2024-11-28 05:13:09,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:09,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394322083] [2024-11-28 05:13:09,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:09,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:09,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,235 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-28 05:13:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,269 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-28 05:13:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,275 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:09,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,279 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:09,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:09,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394322083] [2024-11-28 05:13:09,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394322083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:09,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069775231] [2024-11-28 05:13:09,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:09,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:09,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:09,288 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:09,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-28 05:13:09,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:09,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:13:09,356 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:09,413 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:09,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069775231] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:09,591 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:09,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2024-11-28 05:13:09,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147211939] [2024-11-28 05:13:09,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:09,592 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:09,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:09,592 INFO L85 PathProgramCache]: Analyzing trace with hash -815837104, now seen corresponding path program 1 times [2024-11-28 05:13:09,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:09,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473752613] [2024-11-28 05:13:09,592 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:09,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:09,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:09,597 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:09,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:09,831 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:09,831 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:09,831 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:09,831 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:09,831 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:09,831 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:09,831 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:09,831 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:09,831 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration7_Loop [2024-11-28 05:13:09,831 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:09,831 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:09,832 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,841 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,844 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,847 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,850 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,853 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,855 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,858 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,861 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:09,920 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:09,920 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:09,920 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:09,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:09,925 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:09,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-28 05:13:09,929 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:09,930 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:09,952 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:09,952 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:09,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-28 05:13:09,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:09,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:09,965 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:09,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-28 05:13:09,967 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:09,967 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:09,982 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:09,982 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=2} Honda state: {fibo1_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:09,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-28 05:13:09,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:09,992 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:09,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-28 05:13:09,995 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:09,995 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,009 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,010 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-28 05:13:10,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,019 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-28 05:13:10,022 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,022 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,037 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,037 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,043 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-28 05:13:10,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,046 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-28 05:13:10,049 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,049 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,063 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,063 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:10,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,076 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-28 05:13:10,079 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,079 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,093 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,093 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-28 05:13:10,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,103 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-28 05:13:10,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,106 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,121 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,121 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=1} Honda state: {fibo1_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-28 05:13:10,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,132 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-28 05:13:10,134 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,149 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:10,149 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:10,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-28 05:13:10,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,159 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-28 05:13:10,162 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:10,163 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,184 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-28 05:13:10,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,185 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,187 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-28 05:13:10,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:10,192 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:10,213 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:10,221 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-28 05:13:10,221 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:10,221 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:10,221 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:10,221 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:10,221 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:10,221 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,221 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:10,221 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:10,222 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration7_Loop [2024-11-28 05:13:10,222 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:10,222 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:10,222 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,229 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,232 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,235 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,239 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,244 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,249 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,252 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,257 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:10,330 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:10,330 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:10,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,334 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-28 05:13:10,341 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 [2024-11-28 05:13:10,359 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,359 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,359 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,359 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,359 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,360 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,360 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,363 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:10,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,377 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-28 05:13:10,383 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 [2024-11-28 05:13:10,400 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,400 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,400 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,401 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,401 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,404 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:10,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,420 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-28 05:13:10,425 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 [2024-11-28 05:13:10,443 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,443 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,443 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,443 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,443 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,444 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,444 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,446 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,457 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-28 05:13:10,457 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,462 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-28 05:13:10,465 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 [2024-11-28 05:13:10,482 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,483 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,483 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,483 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,483 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,484 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,484 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,486 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:10,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,500 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-28 05:13:10,504 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 [2024-11-28 05:13:10,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,520 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,527 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-28 05:13:10,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,529 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-28 05:13:10,532 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 [2024-11-28 05:13:10,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,550 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,550 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,550 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,551 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,551 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,553 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-28 05:13:10,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,561 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,563 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-28 05:13:10,566 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 [2024-11-28 05:13:10,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,580 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,580 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,580 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,580 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,581 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,582 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-11-28 05:13:10,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,592 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-28 05:13:10,595 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 [2024-11-28 05:13:10,609 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,609 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,609 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,609 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,609 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,610 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,610 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,613 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:10,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-28 05:13:10,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,622 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-28 05:13:10,625 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 [2024-11-28 05:13:10,639 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:10,639 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:10,640 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:10,640 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:10,640 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:10,641 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:10,641 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:10,644 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:10,647 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:13:10,647 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:13:10,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:10,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:10,649 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:10,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-28 05:13:10,652 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:10,652 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:10,652 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:10,652 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-11-28 05:13:10,659 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:10,659 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:10,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:10,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:10,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 05:13:10,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:10,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-11-28 05:13:10,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Ended with exit code 0 [2024-11-28 05:13:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:11,127 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:13:11,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:11,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:11,290 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-28 05:13:11,290 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 223 states and 285 transitions. cyclomatic complexity: 71 Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:11,867 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 223 states and 285 transitions. cyclomatic complexity: 71. Second operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 965 states and 1206 transitions. Complement of second has 48 states. [2024-11-28 05:13:11,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.2222222222222223) internal successors, (29), 6 states have internal predecessors, (29), 5 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:11,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 72 transitions. [2024-11-28 05:13:11,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 46 letters. Loop has 14 letters. [2024-11-28 05:13:11,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:11,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 60 letters. Loop has 14 letters. [2024-11-28 05:13:11,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:11,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 46 letters. Loop has 28 letters. [2024-11-28 05:13:11,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:11,872 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 965 states and 1206 transitions. [2024-11-28 05:13:11,893 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 77 [2024-11-28 05:13:11,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 965 states to 651 states and 796 transitions. [2024-11-28 05:13:11,910 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2024-11-28 05:13:11,911 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2024-11-28 05:13:11,911 INFO L73 IsDeterministic]: Start isDeterministic. Operand 651 states and 796 transitions. [2024-11-28 05:13:11,911 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:11,911 INFO L218 hiAutomatonCegarLoop]: Abstraction has 651 states and 796 transitions. [2024-11-28 05:13:11,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states and 796 transitions. [2024-11-28 05:13:11,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 607. [2024-11-28 05:13:11,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 607 states, 402 states have (on average 1.2039800995024876) internal successors, (484), 444 states have internal predecessors, (484), 124 states have call successors, (127), 95 states have call predecessors, (127), 81 states have return successors, (134), 67 states have call predecessors, (134), 90 states have call successors, (134) [2024-11-28 05:13:11,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 745 transitions. [2024-11-28 05:13:11,963 INFO L240 hiAutomatonCegarLoop]: Abstraction has 607 states and 745 transitions. [2024-11-28 05:13:11,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:11,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:13:11,964 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:13:11,964 INFO L87 Difference]: Start difference. First operand 607 states and 745 transitions. Second operand has 13 states, 12 states have (on average 3.5) internal successors, (42), 10 states have internal predecessors, (42), 6 states have call successors, (11), 5 states have call predecessors, (11), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 05:13:12,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:12,204 INFO L93 Difference]: Finished difference Result 620 states and 760 transitions. [2024-11-28 05:13:12,205 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 620 states and 760 transitions. [2024-11-28 05:13:12,214 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 73 [2024-11-28 05:13:12,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 620 states to 615 states and 753 transitions. [2024-11-28 05:13:12,222 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2024-11-28 05:13:12,223 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2024-11-28 05:13:12,223 INFO L73 IsDeterministic]: Start isDeterministic. Operand 615 states and 753 transitions. [2024-11-28 05:13:12,223 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:12,223 INFO L218 hiAutomatonCegarLoop]: Abstraction has 615 states and 753 transitions. [2024-11-28 05:13:12,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states and 753 transitions. [2024-11-28 05:13:12,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 609. [2024-11-28 05:13:12,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 403 states have (on average 1.2034739454094292) internal successors, (485), 445 states have internal predecessors, (485), 126 states have call successors, (129), 96 states have call predecessors, (129), 80 states have return successors, (132), 67 states have call predecessors, (132), 91 states have call successors, (132) [2024-11-28 05:13:12,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 746 transitions. [2024-11-28 05:13:12,249 INFO L240 hiAutomatonCegarLoop]: Abstraction has 609 states and 746 transitions. [2024-11-28 05:13:12,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 05:13:12,255 INFO L425 stractBuchiCegarLoop]: Abstraction has 609 states and 746 transitions. [2024-11-28 05:13:12,255 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-28 05:13:12,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 609 states and 746 transitions. [2024-11-28 05:13:12,261 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 73 [2024-11-28 05:13:12,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:12,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:12,263 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:12,263 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:12,263 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(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< [2024-11-28 05:13:12,263 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< [2024-11-28 05:13:12,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:12,264 INFO L85 PathProgramCache]: Analyzing trace with hash -205691575, now seen corresponding path program 1 times [2024-11-28 05:13:12,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:12,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046137807] [2024-11-28 05:13:12,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:12,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,346 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-28 05:13:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,384 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,468 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,474 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,480 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-28 05:13:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:12,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046137807] [2024-11-28 05:13:12,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046137807] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:12,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741068634] [2024-11-28 05:13:12,505 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:12,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:12,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:12,508 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:12,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-28 05:13:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:12,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 05:13:12,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:12,668 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:12,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741068634] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:12,953 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:12,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 18 [2024-11-28 05:13:12,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944386966] [2024-11-28 05:13:12,954 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:12,954 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:12,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:12,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 3 times [2024-11-28 05:13:12,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:12,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936389872] [2024-11-28 05:13:12,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:12,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:12,958 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:12,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:13,098 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:13,098 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:13,098 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:13,098 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:13,098 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:13,098 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,098 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:13,098 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:13,098 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration8_Loop [2024-11-28 05:13:13,098 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:13,098 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:13,099 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,102 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,110 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,113 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,115 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,117 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,174 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:13,174 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:13,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,177 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-28 05:13:13,180 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:13,180 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:13,196 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:13,196 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:13,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-28 05:13:13,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,206 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-28 05:13:13,208 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:13,208 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:13,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,234 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-28 05:13:13,239 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:13,239 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:13,273 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:13,276 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:13,276 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:13,276 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:13,276 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:13,277 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:13,277 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:13,277 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,277 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:13,277 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:13,277 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration8_Loop [2024-11-28 05:13:13,277 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:13,277 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:13,278 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,280 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,289 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,292 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,295 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,297 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,299 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:13,354 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:13,354 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:13,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,357 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-28 05:13:13,360 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 [2024-11-28 05:13:13,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:13,374 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:13,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:13,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:13,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:13,374 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:13,375 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:13,376 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:13,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-11-28 05:13:13,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,384 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,386 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-28 05:13:13,390 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 [2024-11-28 05:13:13,404 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:13,404 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:13,404 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:13,404 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:13,404 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:13,405 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:13,405 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:13,407 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:13,411 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:13:13,411 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:13:13,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:13,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:13,413 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:13,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-28 05:13:13,416 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:13,416 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:13,416 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:13,416 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-28 05:13:13,423 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2024-11-28 05:13:13,424 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:13,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:13,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:13,507 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:13,509 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:13,847 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:13,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:13,948 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:14,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:14,050 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-28 05:13:14,050 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:14,267 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 830 states and 985 transitions. Complement of second has 30 states. [2024-11-28 05:13:14,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2024-11-28 05:13:14,269 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-28 05:13:14,270 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:14,270 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:14,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:14,358 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:14,360 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:14,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:14,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:14,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:14,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:14,813 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-28 05:13:14,814 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:15,005 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 830 states and 985 transitions. Complement of second has 30 states. [2024-11-28 05:13:15,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:15,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2024-11-28 05:13:15,007 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-28 05:13:15,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:15,008 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:15,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:15,100 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:15,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:15,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:15,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:15,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:15,541 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 5 loop predicates [2024-11-28 05:13:15,541 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160 Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:15,744 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 609 states and 746 transitions. cyclomatic complexity: 160. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 1304 states and 1564 transitions. Complement of second has 29 states. [2024-11-28 05:13:15,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 9 states 2 stem states 6 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:15,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 5 states have internal predecessors, (27), 4 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:15,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-11-28 05:13:15,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-28 05:13:15,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:15,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 49 letters. Loop has 8 letters. [2024-11-28 05:13:15,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:15,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 41 letters. Loop has 16 letters. [2024-11-28 05:13:15,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:15,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1564 transitions. [2024-11-28 05:13:15,769 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 173 [2024-11-28 05:13:15,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 858 states and 1054 transitions. [2024-11-28 05:13:15,785 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2024-11-28 05:13:15,787 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2024-11-28 05:13:15,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 858 states and 1054 transitions. [2024-11-28 05:13:15,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:15,788 INFO L218 hiAutomatonCegarLoop]: Abstraction has 858 states and 1054 transitions. [2024-11-28 05:13:15,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states and 1054 transitions. [2024-11-28 05:13:15,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 765. [2024-11-28 05:13:15,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 765 states, 522 states have (on average 1.2030651340996168) internal successors, (628), 563 states have internal predecessors, (628), 152 states have call successors, (155), 128 states have call predecessors, (155), 91 states have return successors, (152), 73 states have call predecessors, (152), 112 states have call successors, (152) [2024-11-28 05:13:15,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 935 transitions. [2024-11-28 05:13:15,834 INFO L240 hiAutomatonCegarLoop]: Abstraction has 765 states and 935 transitions. [2024-11-28 05:13:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:15,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 05:13:15,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-28 05:13:15,835 INFO L87 Difference]: Start difference. First operand 765 states and 935 transitions. Second operand has 18 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 15 states have internal predecessors, (40), 9 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-28 05:13:16,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:16,196 INFO L93 Difference]: Finished difference Result 781 states and 953 transitions. [2024-11-28 05:13:16,196 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 781 states and 953 transitions. [2024-11-28 05:13:16,207 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 155 [2024-11-28 05:13:16,215 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 781 states to 779 states and 949 transitions. [2024-11-28 05:13:16,216 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 333 [2024-11-28 05:13:16,216 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 333 [2024-11-28 05:13:16,217 INFO L73 IsDeterministic]: Start isDeterministic. Operand 779 states and 949 transitions. [2024-11-28 05:13:16,217 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:16,217 INFO L218 hiAutomatonCegarLoop]: Abstraction has 779 states and 949 transitions. [2024-11-28 05:13:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states and 949 transitions. [2024-11-28 05:13:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 766. [2024-11-28 05:13:16,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 522 states have (on average 1.2011494252873562) internal successors, (627), 563 states have internal predecessors, (627), 153 states have call successors, (156), 128 states have call predecessors, (156), 91 states have return successors, (151), 74 states have call predecessors, (151), 112 states have call successors, (151) [2024-11-28 05:13:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 934 transitions. [2024-11-28 05:13:16,244 INFO L240 hiAutomatonCegarLoop]: Abstraction has 766 states and 934 transitions. [2024-11-28 05:13:16,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 05:13:16,246 INFO L425 stractBuchiCegarLoop]: Abstraction has 766 states and 934 transitions. [2024-11-28 05:13:16,246 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-28 05:13:16,246 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 766 states and 934 transitions. [2024-11-28 05:13:16,252 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 152 [2024-11-28 05:13:16,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:16,252 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:16,253 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:16,253 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:16,253 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-28 05:13:16,253 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-28 05:13:16,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:16,254 INFO L85 PathProgramCache]: Analyzing trace with hash 195481506, now seen corresponding path program 1 times [2024-11-28 05:13:16,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:16,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725040957] [2024-11-28 05:13:16,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:16,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,470 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-28 05:13:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,478 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-28 05:13:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,481 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-28 05:13:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,484 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-28 05:13:16,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:16,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725040957] [2024-11-28 05:13:16,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725040957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:16,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451060957] [2024-11-28 05:13:16,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:16,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:16,491 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:16,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-28 05:13:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:16,576 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:13:16,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:16,655 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451060957] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:16,843 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:16,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15 [2024-11-28 05:13:16,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523057481] [2024-11-28 05:13:16,843 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:16,844 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:16,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:16,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 2 times [2024-11-28 05:13:16,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:16,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135037196] [2024-11-28 05:13:16,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:16,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:16,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:16,850 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:16,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:16,853 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:17,048 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:17,048 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:17,048 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:17,048 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:17,048 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:17,048 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,048 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:17,048 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:17,049 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration9_Loop [2024-11-28 05:13:17,049 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:17,049 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:17,049 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,054 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,061 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,070 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,073 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,076 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,082 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,085 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,137 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:17,137 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:17,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,139 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-11-28 05:13:17,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,159 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,159 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:17,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,168 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2024-11-28 05:13:17,171 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,171 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,186 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,186 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2024-11-28 05:13:17,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,196 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,197 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2024-11-28 05:13:17,198 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,198 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,213 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,214 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=1} Honda state: {fibo2_#t~ret6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,226 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2024-11-28 05:13:17,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,229 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2024-11-28 05:13:17,232 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,232 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,247 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,247 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2024-11-28 05:13:17,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,259 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2024-11-28 05:13:17,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,262 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,277 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,277 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:17,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,288 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2024-11-28 05:13:17,291 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,291 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,303 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:17,303 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:17,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2024-11-28 05:13:17,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,313 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2024-11-28 05:13:17,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:17,316 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Ended with exit code 0 [2024-11-28 05:13:17,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,341 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2024-11-28 05:13:17,343 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:17,343 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:17,360 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:17,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Ended with exit code 0 [2024-11-28 05:13:17,367 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:17,367 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:17,368 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:17,368 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:17,368 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:17,368 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,368 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:17,368 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:17,368 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration9_Loop [2024-11-28 05:13:17,368 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:17,368 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:17,369 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,372 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,374 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,376 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,379 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,381 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,383 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,385 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,392 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:17,446 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:17,446 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:17,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,449 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2024-11-28 05:13:17,452 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 [2024-11-28 05:13:17,466 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,467 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,467 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,467 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,467 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,467 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,468 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,470 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:17,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,479 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2024-11-28 05:13:17,481 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 [2024-11-28 05:13:17,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,504 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2024-11-28 05:13:17,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,507 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2024-11-28 05:13:17,509 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 [2024-11-28 05:13:17,523 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,523 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,523 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,524 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,524 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,524 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,524 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,526 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2024-11-28 05:13:17,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,535 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2024-11-28 05:13:17,538 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 [2024-11-28 05:13:17,552 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,552 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,552 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,552 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,552 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,553 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,553 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,555 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Ended with exit code 0 [2024-11-28 05:13:17,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,564 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2024-11-28 05:13:17,567 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 [2024-11-28 05:13:17,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,581 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,582 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,584 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,593 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:17,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,595 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2024-11-28 05:13:17,598 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 [2024-11-28 05:13:17,612 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,612 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,612 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,612 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,613 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,613 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,613 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,615 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2024-11-28 05:13:17,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,624 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2024-11-28 05:13:17,627 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 [2024-11-28 05:13:17,640 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,641 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,641 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,641 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,642 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,645 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:17,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2024-11-28 05:13:17,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,659 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2024-11-28 05:13:17,664 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 [2024-11-28 05:13:17,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:17,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:17,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:17,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:17,682 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:17,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:17,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:17,686 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:17,688 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 05:13:17,688 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:13:17,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:17,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:17,690 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:17,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2024-11-28 05:13:17,693 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:17,693 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:17,693 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:17,693 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-28 05:13:17,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:17,702 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:17,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:17,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:17,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:18,090 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:13:18,091 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:18,228 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-28 05:13:18,228 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:18,637 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 1208 states and 1456 transitions. Complement of second has 48 states. [2024-11-28 05:13:18,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:18,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:18,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 60 transitions. [2024-11-28 05:13:18,639 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 60 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-28 05:13:18,639 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:18,639 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:18,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:18,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:18,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:18,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:18,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:13:18,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:19,106 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 8 loop predicates [2024-11-28 05:13:19,106 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:19,445 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 1455 states and 1712 transitions. Complement of second has 30 states. [2024-11-28 05:13:19,446 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 [2024-11-28 05:13:19,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:19,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-11-28 05:13:19,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-28 05:13:19,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:19,448 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:19,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:19,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2024-11-28 05:13:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:19,568 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 05:13:19,570 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:19,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:13:19,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:19,991 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:19,991 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 8 loop predicates [2024-11-28 05:13:19,991 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192 Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:20,452 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 766 states and 934 transitions. cyclomatic complexity: 192. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Result 2584 states and 3194 transitions. Complement of second has 120 states. [2024-11-28 05:13:20,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:20,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 6 states have internal predecessors, (28), 5 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-28 05:13:20,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 72 transitions. [2024-11-28 05:13:20,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-28 05:13:20,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:20,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 56 letters. Loop has 14 letters. [2024-11-28 05:13:20,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:20,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 42 letters. Loop has 28 letters. [2024-11-28 05:13:20,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:20,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2584 states and 3194 transitions. [2024-11-28 05:13:20,486 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 397 [2024-11-28 05:13:20,507 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2584 states to 1324 states and 1643 transitions. [2024-11-28 05:13:20,507 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 538 [2024-11-28 05:13:20,508 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 572 [2024-11-28 05:13:20,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1324 states and 1643 transitions. [2024-11-28 05:13:20,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:20,508 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1324 states and 1643 transitions. [2024-11-28 05:13:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states and 1643 transitions. [2024-11-28 05:13:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 977. [2024-11-28 05:13:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 662 states have (on average 1.188821752265861) internal successors, (787), 712 states have internal predecessors, (787), 193 states have call successors, (204), 162 states have call predecessors, (204), 122 states have return successors, (187), 102 states have call predecessors, (187), 142 states have call successors, (187) [2024-11-28 05:13:20,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1178 transitions. [2024-11-28 05:13:20,552 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1178 transitions. [2024-11-28 05:13:20,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:20,553 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 05:13:20,553 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:13:20,553 INFO L87 Difference]: Start difference. First operand 977 states and 1178 transitions. Second operand has 15 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 11 states have internal predecessors, (32), 7 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-28 05:13:20,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:20,840 INFO L93 Difference]: Finished difference Result 361 states and 400 transitions. [2024-11-28 05:13:20,840 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 361 states and 400 transitions. [2024-11-28 05:13:20,843 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 48 [2024-11-28 05:13:20,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 361 states to 236 states and 259 transitions. [2024-11-28 05:13:20,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2024-11-28 05:13:20,846 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2024-11-28 05:13:20,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 259 transitions. [2024-11-28 05:13:20,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:20,846 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 259 transitions. [2024-11-28 05:13:20,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 259 transitions. [2024-11-28 05:13:20,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 161. [2024-11-28 05:13:20,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 109 states have (on average 1.1192660550458715) internal successors, (122), 115 states have internal predecessors, (122), 31 states have call successors, (33), 26 states have call predecessors, (33), 21 states have return successors, (23), 19 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-28 05:13:20,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-11-28 05:13:20,853 INFO L240 hiAutomatonCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-11-28 05:13:20,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:13:20,853 INFO L425 stractBuchiCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-11-28 05:13:20,853 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-28 05:13:20,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 178 transitions. [2024-11-28 05:13:20,855 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2024-11-28 05:13:20,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:20,855 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:20,855 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:20,855 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:20,856 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-11-28 05:13:20,856 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-11-28 05:13:20,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:20,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1886766591, now seen corresponding path program 1 times [2024-11-28 05:13:20,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:20,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372949524] [2024-11-28 05:13:20,856 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:20,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:20,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:21,029 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-28 05:13:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:21,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 05:13:21,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372949524] [2024-11-28 05:13:21,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372949524] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:13:21,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782478732] [2024-11-28 05:13:21,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:21,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:13:21,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,038 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-28 05:13:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:21,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:13:21,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:21,162 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:13:21,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782478732] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:13:21,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:13:21,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2024-11-28 05:13:21,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818212324] [2024-11-28 05:13:21,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:13:21,307 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-28 05:13:21,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:21,307 INFO L85 PathProgramCache]: Analyzing trace with hash -2095272006, now seen corresponding path program 4 times [2024-11-28 05:13:21,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:21,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452443768] [2024-11-28 05:13:21,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:21,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:21,311 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:21,314 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:21,494 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:21,494 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:21,494 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:21,494 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:21,494 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:21,494 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,494 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:21,495 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:21,495 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration10_Loop [2024-11-28 05:13:21,495 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:21,495 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:21,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,501 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,504 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,525 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:21,604 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:21,604 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:21,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,607 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2024-11-28 05:13:21,613 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,613 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,634 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:21,634 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:21,646 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Ended with exit code 0 [2024-11-28 05:13:21,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,649 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2024-11-28 05:13:21,654 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,654 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,677 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:21,677 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:21,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:21,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,693 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2024-11-28 05:13:21,699 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,699 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,721 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:21,721 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:21,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:21,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,738 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2024-11-28 05:13:21,744 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,744 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,765 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:21,766 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:21,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:21,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,782 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2024-11-28 05:13:21,787 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,787 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,811 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:21,811 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:21,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:21,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,827 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2024-11-28 05:13:21,832 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:21,832 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:21,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:21,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:21,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:21,885 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:21,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2024-11-28 05:13:21,889 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:21,890 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:22,104 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:22,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:22,111 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:22,111 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:22,111 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:22,111 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:22,111 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:22,111 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,111 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:22,111 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:22,111 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration10_Loop [2024-11-28 05:13:22,111 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:22,111 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:22,112 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,114 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,116 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,119 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,121 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,123 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,141 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:22,228 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:22,228 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:22,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,232 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2024-11-28 05:13:22,238 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 [2024-11-28 05:13:22,257 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,257 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,257 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,257 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,257 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,258 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,258 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,261 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:22,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:22,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,277 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2024-11-28 05:13:22,283 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 [2024-11-28 05:13:22,302 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,302 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,302 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,302 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,303 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,303 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,303 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,305 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:22,318 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2024-11-28 05:13:22,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,320 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2024-11-28 05:13:22,324 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 [2024-11-28 05:13:22,338 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,338 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,338 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,338 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,339 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,339 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,339 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,341 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:22,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:22,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,351 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2024-11-28 05:13:22,354 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 [2024-11-28 05:13:22,369 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,369 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,369 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,369 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,369 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,369 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,369 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,371 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:22,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Ended with exit code 0 [2024-11-28 05:13:22,378 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,381 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2024-11-28 05:13:22,385 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 [2024-11-28 05:13:22,399 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,399 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,399 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,399 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,399 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,400 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,400 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,402 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:22,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:22,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,410 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,412 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2024-11-28 05:13:22,415 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-28 05:13:22,430 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:22,430 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:22,430 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:22,430 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:22,430 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:22,431 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:22,432 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:22,435 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:22,437 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-28 05:13:22,437 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-28 05:13:22,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:22,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:22,440 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:22,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2024-11-28 05:13:22,443 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:22,443 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:22,443 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:22,443 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-28 05:13:22,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Ended with exit code 0 [2024-11-28 05:13:22,454 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:22,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:22,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:22,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 05:13:22,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:22,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:22,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:22,684 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:22,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:22,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:22,802 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 [2024-11-28 05:13:22,802 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 161 states and 178 transitions. cyclomatic complexity: 21 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:13:22,959 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 161 states and 178 transitions. cyclomatic complexity: 21. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 238 states and 262 transitions. Complement of second has 20 states. [2024-11-28 05:13:22,959 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 [2024-11-28 05:13:22,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:13:22,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2024-11-28 05:13:22,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 40 letters. Loop has 8 letters. [2024-11-28 05:13:22,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:22,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 48 letters. Loop has 8 letters. [2024-11-28 05:13:22,961 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:22,961 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 40 letters. Loop has 16 letters. [2024-11-28 05:13:22,962 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:22,962 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 262 transitions. [2024-11-28 05:13:22,964 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2024-11-28 05:13:22,965 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 158 states and 173 transitions. [2024-11-28 05:13:22,966 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-11-28 05:13:22,966 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2024-11-28 05:13:22,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 173 transitions. [2024-11-28 05:13:22,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:22,967 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 173 transitions. [2024-11-28 05:13:22,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 173 transitions. [2024-11-28 05:13:22,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-28 05:13:22,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 107 states have (on average 1.1121495327102804) internal successors, (119), 112 states have internal predecessors, (119), 30 states have call successors, (31), 26 states have call predecessors, (31), 21 states have return successors, (23), 19 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-28 05:13:22,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 173 transitions. [2024-11-28 05:13:22,973 INFO L240 hiAutomatonCegarLoop]: Abstraction has 158 states and 173 transitions. [2024-11-28 05:13:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 05:13:22,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:13:22,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:13:22,975 INFO L87 Difference]: Start difference. First operand 158 states and 173 transitions. Second operand has 13 states, 12 states have (on average 2.1666666666666665) internal successors, (26), 8 states have internal predecessors, (26), 6 states have call successors, (8), 7 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 05:13:23,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:13:23,226 INFO L93 Difference]: Finished difference Result 144 states and 153 transitions. [2024-11-28 05:13:23,227 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 153 transitions. [2024-11-28 05:13:23,228 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 05:13:23,229 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 102 states and 104 transitions. [2024-11-28 05:13:23,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2024-11-28 05:13:23,229 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 102 [2024-11-28 05:13:23,229 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 104 transitions. [2024-11-28 05:13:23,229 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-28 05:13:23,229 INFO L218 hiAutomatonCegarLoop]: Abstraction has 102 states and 104 transitions. [2024-11-28 05:13:23,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 104 transitions. [2024-11-28 05:13:23,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-28 05:13:23,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 68 states have (on average 1.0294117647058822) internal successors, (70), 69 states have internal predecessors, (70), 17 states have call successors, (17), 16 states have call predecessors, (17), 13 states have return successors, (13), 12 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 05:13:23,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2024-11-28 05:13:23,239 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-11-28 05:13:23,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:13:23,240 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-11-28 05:13:23,240 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-28 05:13:23,240 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2024-11-28 05:13:23,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-28 05:13:23,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 05:13:23,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 05:13:23,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:23,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:13:23,242 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< [2024-11-28 05:13:23,242 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< [2024-11-28 05:13:23,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1182981662, now seen corresponding path program 1 times [2024-11-28 05:13:23,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:23,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351037582] [2024-11-28 05:13:23,243 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:23,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:23,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,259 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:23,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,277 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:23,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:23,280 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 5 times [2024-11-28 05:13:23,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:23,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585337822] [2024-11-28 05:13:23,281 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,286 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,289 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:23,290 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:23,290 INFO L85 PathProgramCache]: Analyzing trace with hash 65521925, now seen corresponding path program 2 times [2024-11-28 05:13:23,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 05:13:23,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514902069] [2024-11-28 05:13:23,290 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:13:23,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:13:23,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,304 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 05:13:23,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 05:13:23,321 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 05:13:23,464 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:23,464 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:23,464 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:23,464 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:23,464 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-28 05:13:23,465 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,465 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:23,465 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:23,465 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration11_Loop [2024-11-28 05:13:23,465 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:23,465 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:23,466 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,469 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,485 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,491 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,551 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:23,552 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-28 05:13:23,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,555 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2024-11-28 05:13:23,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:23,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:23,584 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:23,584 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:23,593 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Ended with exit code 0 [2024-11-28 05:13:23,593 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,595 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2024-11-28 05:13:23,598 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:23,598 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:23,614 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:23,614 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:23,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Ended with exit code 0 [2024-11-28 05:13:23,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,626 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2024-11-28 05:13:23,629 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:23,629 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:23,645 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-28 05:13:23,645 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-28 05:13:23,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Ended with exit code 0 [2024-11-28 05:13:23,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,657 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2024-11-28 05:13:23,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-28 05:13:23,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:23,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Ended with exit code 0 [2024-11-28 05:13:23,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,686 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2024-11-28 05:13:23,689 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-28 05:13:23,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-28 05:13:23,753 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-28 05:13:23,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Ended with exit code 0 [2024-11-28 05:13:23,757 INFO L204 LassoAnalysis]: Preferences: [2024-11-28 05:13:23,757 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-28 05:13:23,757 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-28 05:13:23,757 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-28 05:13:23,757 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-28 05:13:23,757 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,757 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-28 05:13:23,757 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-28 05:13:23,757 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-2.c_Iteration11_Loop [2024-11-28 05:13:23,757 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-28 05:13:23,757 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-28 05:13:23,758 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,764 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,770 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,775 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,784 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,787 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,789 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,791 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-28 05:13:23,838 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-28 05:13:23,838 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-28 05:13:23,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,840 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2024-11-28 05:13:23,844 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 [2024-11-28 05:13:23,858 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:23,858 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:23,858 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:23,858 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:23,858 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:23,859 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:23,859 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:23,860 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:23,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:23,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,870 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2024-11-28 05:13:23,873 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 [2024-11-28 05:13:23,888 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:23,888 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:23,888 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:23,888 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:23,888 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:23,889 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:23,889 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:23,890 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:23,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2024-11-28 05:13:23,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,900 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2024-11-28 05:13:23,903 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 [2024-11-28 05:13:23,918 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:23,918 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:23,918 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:23,918 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:23,918 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:23,919 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:23,919 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:23,920 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-28 05:13:23,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:23,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,931 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2024-11-28 05:13:23,937 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 [2024-11-28 05:13:23,953 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-28 05:13:23,953 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-28 05:13:23,953 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-28 05:13:23,953 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-28 05:13:23,953 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-28 05:13:23,954 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-28 05:13:23,954 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-28 05:13:23,957 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-28 05:13:23,960 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-28 05:13:23,960 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-28 05:13:23,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 05:13:23,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:13:23,962 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 05:13:23,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2024-11-28 05:13:23,966 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-28 05:13:23,966 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-28 05:13:23,966 INFO L474 LassoAnalysis]: Proved termination. [2024-11-28 05:13:23,966 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-28 05:13:23,977 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Ended with exit code 0 [2024-11-28 05:13:23,978 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-28 05:13:23,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:24,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:24,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:13:24,101 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:24,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:24,762 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:24,763 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:24,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:24,842 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-28 05:13:24,842 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:24,922 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 102 states and 104 transitions. Complement of second has 9 states. [2024-11-28 05:13:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:24,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:24,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-28 05:13:24,924 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-28 05:13:24,924 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:24,924 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:25,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:13:25,027 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:25,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2024-11-28 05:13:25,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:25,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:25,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:25,817 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 5 loop predicates [2024-11-28 05:13:25,817 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:25,906 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 102 states and 104 transitions. Complement of second has 9 states. [2024-11-28 05:13:25,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2024-11-28 05:13:25,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:25,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-28 05:13:25,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-28 05:13:25,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:25,908 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-28 05:13:25,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:13:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:26,017 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 05:13:26,019 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:13:26,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 05:13:26,619 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:13:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 05:13:26,694 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 5 loop predicates [2024-11-28 05:13:26,694 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3 Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:26,841 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 98 states and 100 transitions. cyclomatic complexity: 3. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Result 124 states and 128 transitions. Complement of second has 17 states. [2024-11-28 05:13:26,841 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 [2024-11-28 05:13:26,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 5 states have internal predecessors, (25), 4 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 05:13:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 37 transitions. [2024-11-28 05:13:26,842 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-28 05:13:26,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:26,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 71 letters. Loop has 8 letters. [2024-11-28 05:13:26,843 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:26,843 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 63 letters. Loop has 16 letters. [2024-11-28 05:13:26,844 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-28 05:13:26,844 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 128 transitions. [2024-11-28 05:13:26,845 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:13:26,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 0 states and 0 transitions. [2024-11-28 05:13:26,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-28 05:13:26,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-28 05:13:26,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-28 05:13:26,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 05:13:26,845 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:13:26,845 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:13:26,846 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 05:13:26,846 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-28 05:13:26,846 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-28 05:13:26,846 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-28 05:13:26,846 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-28 05:13:26,858 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 05:13:26 BoogieIcfgContainer [2024-11-28 05:13:26,858 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 05:13:26,859 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 05:13:26,859 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 05:13:26,860 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 05:13:26,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:12:53" (3/4) ... [2024-11-28 05:13:26,865 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 05:13:26,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 05:13:26,867 INFO L158 Benchmark]: Toolchain (without parser) took 34314.77ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 100.8MB in the beginning and 200.1MB in the end (delta: -99.3MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2024-11-28 05:13:26,868 INFO L158 Benchmark]: CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:13:26,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.14ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 90.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 05:13:26,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.17ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 89.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:13:26,870 INFO L158 Benchmark]: Boogie Preprocessor took 51.90ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:13:26,870 INFO L158 Benchmark]: RCFGBuilder took 435.80ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 77.8MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 05:13:26,870 INFO L158 Benchmark]: BuchiAutomizer took 33460.57ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 77.5MB in the beginning and 200.2MB in the end (delta: -122.8MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. [2024-11-28 05:13:26,871 INFO L158 Benchmark]: Witness Printer took 6.98ms. Allocated memory is still 352.3MB. Free memory was 200.2MB in the beginning and 200.1MB in the end (delta: 106.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 05:13:26,874 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56ms. Allocated memory is still 167.8MB. Free memory is still 105.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.14ms. Allocated memory is still 142.6MB. Free memory was 100.8MB in the beginning and 90.3MB in the end (delta: 10.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.17ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 89.2MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.90ms. Allocated memory is still 142.6MB. Free memory was 89.2MB in the beginning and 87.9MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.80ms. Allocated memory is still 142.6MB. Free memory was 87.9MB in the beginning and 77.8MB in the end (delta: 10.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 33460.57ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 77.5MB in the beginning and 200.2MB in the end (delta: -122.8MB). Peak memory consumption was 80.6MB. Max. memory is 16.1GB. * Witness Printer took 6.98ms. Allocated memory is still 352.3MB. Free memory was 200.2MB in the beginning and 200.1MB in the end (delta: 106.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 17 terminating modules (9 trivial, 5 deterministic, 3 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 8 locations. One deterministic module has affine ranking function \old(n) and consists of 9 locations. One deterministic module has affine ranking function n and consists of 14 locations. One deterministic module has affine ranking function n and consists of 14 locations. One deterministic module has affine ranking function n and consists of 8 locations. One nondeterministic module has affine ranking function \old(n) and consists of 9 locations. One nondeterministic module has affine ranking function n and consists of 14 locations. One nondeterministic module has affine ranking function \old(n) and consists of 8 locations. 9 modules have a trivial ranking function, the largest among these consists of 21 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 33.3s and 12 iterations. TraceHistogramMax:10. Analysis of lassos took 17.3s. Construction of modules took 3.2s. Büchi inclusion checks took 12.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 16. Automata minimization 0.3s AutomataMinimizationTime, 16 MinimizatonAttempts, 660 StatesRemovedByMinimization, 13 NontrivialMinimizations. Non-live state removal took 0.2s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [5, 0, 3, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/9 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1011 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 973 mSDsluCounter, 2065 SdHoareTripleChecker+Invalid, 3.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1543 mSDsCounter, 576 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3255 IncrementalHoareTripleChecker+Invalid, 3831 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 576 mSolverCounterUnsat, 522 mSDtfsCounter, 3255 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI3 SILT6 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp83 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf92 smp74 dnf100 smp100 tf113 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 42ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 42 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.9s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-28 05:13:26,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:27,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:27,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Ended with exit code 0 [2024-11-28 05:13:27,492 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:27,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:27,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:28,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-28 05:13:28,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:28,497 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:28,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:28,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 05:13:29,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 05:13:29,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f9fc2f4-037b-49d2-8528-9f65b1704ee7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE