./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-1.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_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/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_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/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_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/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 24cc882af4ec42ba94c424c5a1ed92d402543c0fe2bf17d3fca0ca1cd73500b7 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:15:05,070 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:15:05,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 20:15:05,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:15:05,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:15:05,202 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:15:05,204 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:15:05,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:15:05,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:15:05,205 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:15:05,206 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:15:05,206 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:15:05,206 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:15:05,206 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 20:15:05,206 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 20:15:05,207 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 20:15:05,207 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 20:15:05,207 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 20:15:05,209 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 20:15:05,209 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:15:05,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 20:15:05,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:15:05,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:15:05,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:15:05,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:15:05,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 20:15:05,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 20:15:05,211 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 20:15:05,211 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 20:15:05,211 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:15:05,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:15:05,212 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 20:15:05,212 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:15:05,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:15:05,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:15:05,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:15:05,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:15:05,213 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 20:15:05,214 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 20:15:05,214 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_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/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 -> 24cc882af4ec42ba94c424c5a1ed92d402543c0fe2bf17d3fca0ca1cd73500b7 [2024-11-27 20:15:05,614 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:15:05,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:15:05,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:15:05,637 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:15:05,637 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:15:05,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/recursive-simple/fibo_2calls_5-1.c [2024-11-27 20:15:09,286 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/data/2fdf9742e/b25fb4798ffa4aabaed0702833e3681f/FLAGeae391e3c [2024-11-27 20:15:09,661 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:15:09,662 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/sv-benchmarks/c/recursive-simple/fibo_2calls_5-1.c [2024-11-27 20:15:09,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/data/2fdf9742e/b25fb4798ffa4aabaed0702833e3681f/FLAGeae391e3c [2024-11-27 20:15:09,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/data/2fdf9742e/b25fb4798ffa4aabaed0702833e3681f [2024-11-27 20:15:09,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:15:09,899 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:15:09,902 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:09,902 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:15:09,908 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:15:09,909 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:09" (1/1) ... [2024-11-27 20:15:09,910 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553753d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:09, skipping insertion in model container [2024-11-27 20:15:09,910 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:15:09" (1/1) ... [2024-11-27 20:15:09,937 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:15:10,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:10,182 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:15:10,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:15:10,225 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:15:10,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10 WrapperNode [2024-11-27 20:15:10,226 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:15:10,227 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:10,228 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:15:10,228 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:15:10,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,247 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,265 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-11-27 20:15:10,265 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:15:10,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:15:10,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:15:10,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:15:10,277 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,279 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,294 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]. [2024-11-27 20:15:10,295 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,296 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,299 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,300 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,302 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,303 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,304 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:15:10,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:15:10,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:15:10,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:15:10,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (1/1) ... [2024-11-27 20:15:10,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:10,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:10,351 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:10,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 20:15:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:15:10,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:15:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2024-11-27 20:15:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2024-11-27 20:15:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2024-11-27 20:15:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2024-11-27 20:15:10,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:15:10,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:15:10,457 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:15:10,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:15:10,622 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-27 20:15:10,622 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:15:10,640 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:15:10,640 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-27 20:15:10,641 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:10 BoogieIcfgContainer [2024-11-27 20:15:10,641 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:15:10,642 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 20:15:10,642 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 20:15:10,650 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 20:15:10,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:10,651 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 08:15:09" (1/3) ... [2024-11-27 20:15:10,652 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bf739a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:15:10, skipping insertion in model container [2024-11-27 20:15:10,653 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:10,654 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:15:10" (2/3) ... [2024-11-27 20:15:10,655 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4bf739a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 08:15:10, skipping insertion in model container [2024-11-27 20:15:10,655 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 20:15:10,655 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:10" (3/3) ... [2024-11-27 20:15:10,658 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_5-1.c [2024-11-27 20:15:10,745 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 20:15:10,747 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 20:15:10,747 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 20:15:10,747 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 20:15:10,747 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 20:15:10,748 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 20:15:10,748 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 20:15:10,748 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 20:15:10,755 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) [2024-11-27 20:15:10,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:10,782 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:10,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:10,789 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:15:10,789 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:10,789 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 20:15:10,790 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) [2024-11-27 20:15:10,793 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:10,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:10,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:10,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-11-27 20:15:10,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:10,804 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< [2024-11-27 20:15:10,805 INFO L749 eck$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);"< [2024-11-27 20:15:10,812 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:10,813 INFO L85 PathProgramCache]: Analyzing trace with hash 29898, now seen corresponding path program 1 times [2024-11-27 20:15:10,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:10,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797690320] [2024-11-27 20:15:10,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:10,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:10,937 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:10,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:10,975 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:10,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 1 times [2024-11-27 20:15:10,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:10,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382882743] [2024-11-27 20:15:10,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:10,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:11,000 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:11,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:11,016 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:11,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:11,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1276411855, now seen corresponding path program 1 times [2024-11-27 20:15:11,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:11,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228617176] [2024-11-27 20:15:11,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:11,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:11,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:11,047 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:11,076 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:11,427 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:11,428 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:11,429 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:11,429 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:11,429 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:11,429 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,429 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:11,430 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:11,430 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration1_Loop [2024-11-27 20:15:11,430 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:11,430 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:11,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,459 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,463 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,471 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,475 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,480 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,488 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:11,636 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:11,637 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:11,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-11-27 20:15:11,650 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,650 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,668 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,668 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-11-27 20:15:11,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,678 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-11-27 20:15:11,681 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,681 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,697 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,697 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,709 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-11-27 20:15:11,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,712 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-11-27 20:15:11,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,717 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,740 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,740 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:11,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,757 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-11-27 20:15:11,764 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,764 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,785 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,785 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-11-27 20:15:11,798 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,801 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-11-27 20:15:11,806 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,806 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,822 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,822 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-11-27 20:15:11,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,832 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-11-27 20:15:11,835 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,835 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,850 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,851 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:11,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,864 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-11-27 20:15:11,869 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,870 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,887 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:11,887 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:11,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-11-27 20:15:11,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,897 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-11-27 20:15:11,902 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:11,902 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-11-27 20:15:11,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:11,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:11,928 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:11,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-11-27 20:15:11,934 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:11,934 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:11,998 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:12,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:12,003 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:12,003 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:12,003 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:12,003 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:12,003 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:12,003 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,004 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:12,004 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:12,004 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration1_Loop [2024-11-27 20:15:12,004 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:12,004 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:12,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,024 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,029 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,039 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,062 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,067 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:12,167 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:12,175 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:12,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,179 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-11-27 20:15:12,184 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 [2024-11-27 20:15:12,203 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,204 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,204 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,205 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,205 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,210 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,214 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:12,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-11-27 20:15:12,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,230 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Waiting until timeout for monitored process [2024-11-27 20:15:12,233 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 [2024-11-27 20:15:12,249 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,249 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,249 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,249 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,249 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,250 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,250 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,252 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:12,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (12)] Ended with exit code 0 [2024-11-27 20:15:12,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,262 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-11-27 20:15:12,265 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 [2024-11-27 20:15:12,279 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,279 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,280 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,280 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,280 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,281 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,281 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,283 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:12,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Ended with exit code 0 [2024-11-27 20:15:12,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,296 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-11-27 20:15:12,300 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 [2024-11-27 20:15:12,314 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,314 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,314 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,314 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,315 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,316 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,316 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,318 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:12,329 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-11-27 20:15:12,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,332 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-11-27 20:15:12,335 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 [2024-11-27 20:15:12,349 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,349 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,349 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,349 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,349 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,350 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,350 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,353 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:12,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-11-27 20:15:12,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,368 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-11-27 20:15:12,374 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 [2024-11-27 20:15:12,392 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:12,392 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:12,392 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:12,392 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:12,392 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:12,398 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:12,398 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:12,405 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:12,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:15:12,414 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:15:12,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:12,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:12,421 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:12,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-11-27 20:15:12,431 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:12,431 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:12,431 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:12,432 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-27 20:15:12,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-11-27 20:15:12,450 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:12,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:12,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 20:15:12,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:12,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:12,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:12,785 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 [2024-11-27 20:15:12,788 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) [2024-11-27 20:15:13,066 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. [2024-11-27 20:15:13,068 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 [2024-11-27 20:15:13,075 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) [2024-11-27 20:15:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 19 transitions. [2024-11-27 20:15:13,086 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 8 letters. [2024-11-27 20:15:13,088 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:13,088 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 11 letters. Loop has 8 letters. [2024-11-27 20:15:13,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:13,089 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 19 transitions. Stem has 3 letters. Loop has 16 letters. [2024-11-27 20:15:13,089 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:13,090 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 77 states and 107 transitions. [2024-11-27 20:15:13,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:13,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 77 states to 55 states and 75 transitions. [2024-11-27 20:15:13,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-11-27 20:15:13,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 36 [2024-11-27 20:15:13,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 55 states and 75 transitions. [2024-11-27 20:15:13,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:13,106 INFO L218 hiAutomatonCegarLoop]: Abstraction has 55 states and 75 transitions. [2024-11-27 20:15:13,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states and 75 transitions. [2024-11-27 20:15:13,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 54. [2024-11-27 20:15:13,140 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) [2024-11-27 20:15:13,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 72 transitions. [2024-11-27 20:15:13,143 INFO L240 hiAutomatonCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-27 20:15:13,144 INFO L425 stractBuchiCegarLoop]: Abstraction has 54 states and 72 transitions. [2024-11-27 20:15:13,144 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 20:15:13,144 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 54 states and 72 transitions. [2024-11-27 20:15:13,146 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:13,146 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:13,147 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:13,148 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:13,148 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:13,149 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#48#return;" [2024-11-27 20:15:13,149 INFO L749 eck$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;" [2024-11-27 20:15:13,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:13,150 INFO L85 PathProgramCache]: Analyzing trace with hash -722660232, now seen corresponding path program 1 times [2024-11-27 20:15:13,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:13,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999124558] [2024-11-27 20:15:13,150 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:13,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:13,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,317 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:15:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:13,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999124558] [2024-11-27 20:15:13,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999124558] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:13,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280149232] [2024-11-27 20:15:13,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:13,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:13,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:13,404 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:13,411 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 20:15:13,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:15:13,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:13,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:13,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280149232] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:13,828 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:13,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 16 [2024-11-27 20:15:13,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816436052] [2024-11-27 20:15:13,830 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:13,832 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:13,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:13,833 INFO L85 PathProgramCache]: Analyzing trace with hash -880179458, now seen corresponding path program 1 times [2024-11-27 20:15:13,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:13,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359381860] [2024-11-27 20:15:13,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,898 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:15:13,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:13,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:13,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359381860] [2024-11-27 20:15:13,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359381860] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:13,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102122186] [2024-11-27 20:15:13,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:13,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:13,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:13,941 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:13,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-27 20:15:14,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:14,013 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-27 20:15:14,015 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:14,056 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:14,076 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:14,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102122186] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:14,185 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:14,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-27 20:15:14,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248635335] [2024-11-27 20:15:14,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:14,186 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:15:14,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:14,189 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 20:15:14,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:15:14,192 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) [2024-11-27 20:15:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:14,334 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-27 20:15:14,334 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 62 states and 81 transitions. [2024-11-27 20:15:14,341 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:14,344 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 62 states to 60 states and 79 transitions. [2024-11-27 20:15:14,344 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 42 [2024-11-27 20:15:14,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 42 [2024-11-27 20:15:14,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 79 transitions. [2024-11-27 20:15:14,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:14,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:15:14,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 79 transitions. [2024-11-27 20:15:14,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-11-27 20:15:14,360 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) [2024-11-27 20:15:14,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 79 transitions. [2024-11-27 20:15:14,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:15:14,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 20:15:14,369 INFO L425 stractBuchiCegarLoop]: Abstraction has 60 states and 79 transitions. [2024-11-27 20:15:14,369 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 20:15:14,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 60 states and 79 transitions. [2024-11-27 20:15:14,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:14,372 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:14,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:14,377 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:14,377 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] [2024-11-27 20:15:14,378 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-27 20:15:14,378 INFO L749 eck$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;" [2024-11-27 20:15:14,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:14,379 INFO L85 PathProgramCache]: Analyzing trace with hash -927605802, now seen corresponding path program 1 times [2024-11-27 20:15:14,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:14,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042864076] [2024-11-27 20:15:14,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:14,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:14,569 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:15:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:14,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:14,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042864076] [2024-11-27 20:15:14,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042864076] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:14,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1412926388] [2024-11-27 20:15:14,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:14,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:14,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:14,629 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:14,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-27 20:15:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:14,690 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-27 20:15:14,691 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:14,762 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:15,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1412926388] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:15,010 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:15,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-27 20:15:15,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080690256] [2024-11-27 20:15:15,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:15,011 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:15,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:15,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1290736728, now seen corresponding path program 1 times [2024-11-27 20:15:15,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:15,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826959976] [2024-11-27 20:15:15,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:15,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,212 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:15:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,367 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,473 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,530 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,542 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-27 20:15:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,666 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:15,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,699 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:15,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826959976] [2024-11-27 20:15:15,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826959976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97161528] [2024-11-27 20:15:15,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:15,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:15,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:15,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:15,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-27 20:15:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:15,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:15:15,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:15,947 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:16,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97161528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:16,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:16,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 20 [2024-11-27 20:15:16,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865618819] [2024-11-27 20:15:16,677 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:16,677 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:15:16,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:16,681 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:15:16,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:15:16,682 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) [2024-11-27 20:15:17,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:17,034 INFO L93 Difference]: Finished difference Result 79 states and 101 transitions. [2024-11-27 20:15:17,034 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 79 states and 101 transitions. [2024-11-27 20:15:17,037 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:17,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 79 states to 73 states and 93 transitions. [2024-11-27 20:15:17,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2024-11-27 20:15:17,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2024-11-27 20:15:17,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 73 states and 93 transitions. [2024-11-27 20:15:17,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:17,041 INFO L218 hiAutomatonCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-27 20:15:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states and 93 transitions. [2024-11-27 20:15:17,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-27 20:15:17,048 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) [2024-11-27 20:15:17,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2024-11-27 20:15:17,050 INFO L240 hiAutomatonCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-27 20:15:17,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:15:17,053 INFO L425 stractBuchiCegarLoop]: Abstraction has 73 states and 93 transitions. [2024-11-27 20:15:17,053 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-27 20:15:17,053 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 73 states and 93 transitions. [2024-11-27 20:15:17,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:17,055 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:17,055 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:17,058 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] [2024-11-27 20:15:17,059 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:17,059 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< [2024-11-27 20:15:17,059 INFO L749 eck$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);"< [2024-11-27 20:15:17,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:17,061 INFO L85 PathProgramCache]: Analyzing trace with hash -689987431, now seen corresponding path program 1 times [2024-11-27 20:15:17,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:17,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937806309] [2024-11-27 20:15:17,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:17,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:17,137 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:15:17,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:17,187 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:17,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:17,222 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:15:17,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:17,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:17,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937806309] [2024-11-27 20:15:17,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937806309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:17,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92045960] [2024-11-27 20:15:17,231 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:17,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:17,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:17,237 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:17,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-27 20:15:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:17,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:15:17,293 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:17,481 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:17,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92045960] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:17,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:17,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 11] total 21 [2024-11-27 20:15:17,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576938142] [2024-11-27 20:15:17,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:17,834 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:17,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:17,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 2 times [2024-11-27 20:15:17,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:17,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954170001] [2024-11-27 20:15:17,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:17,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:17,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:17,840 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:17,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:17,843 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:17,994 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:17,994 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:17,994 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:17,995 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:17,995 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:17,995 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:17,995 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:17,995 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:17,995 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration4_Loop [2024-11-27 20:15:17,995 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:17,995 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:17,996 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,000 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,005 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,022 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,075 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:18,075 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:18,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,083 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-11-27 20:15:18,088 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:18,088 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,111 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:18,112 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:18,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:18,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,126 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-11-27 20:15:18,132 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:18,132 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,153 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:18,154 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:18,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-11-27 20:15:18,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,168 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-11-27 20:15:18,173 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:18,174 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,193 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:18,194 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:18,204 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-11-27 20:15:18,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,206 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-11-27 20:15:18,209 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:18,209 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,225 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:18,225 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:18,236 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:18,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,239 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-11-27 20:15:18,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:18,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:18,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,271 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-11-27 20:15:18,274 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:18,274 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:18,330 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:18,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:18,334 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:18,334 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:18,334 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:18,334 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:18,334 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:18,334 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,334 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:18,334 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:18,334 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration4_Loop [2024-11-27 20:15:18,335 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:18,335 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:18,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,344 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,346 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,358 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,361 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,367 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,370 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:18,424 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:18,424 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:18,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,427 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-11-27 20:15:18,434 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 [2024-11-27 20:15:18,451 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:18,451 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:18,451 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:18,451 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:18,451 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:18,452 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:18,452 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:18,455 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:18,465 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:18,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,468 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-11-27 20:15:18,473 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 [2024-11-27 20:15:18,490 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:18,490 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:18,490 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:18,490 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:18,490 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:18,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:18,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:18,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:18,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-11-27 20:15:18,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,509 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-11-27 20:15:18,515 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 [2024-11-27 20:15:18,539 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:18,539 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:18,540 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:18,540 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:18,540 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:18,540 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:18,541 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:18,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:18,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-11-27 20:15:18,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,558 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-11-27 20:15:18,561 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 [2024-11-27 20:15:18,575 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:18,575 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:18,575 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:18,575 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:18,575 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:18,576 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:18,576 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:18,580 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:18,584 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:15:18,584 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:15:18,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:18,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:18,588 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:18,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-11-27 20:15:18,593 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:18,593 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:18,593 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:18,593 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-27 20:15:18,603 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-11-27 20:15:18,603 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:18,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:18,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:18,677 INFO L256 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:15:18,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:18,986 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:18,988 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:19,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:19,075 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 [2024-11-27 20:15:19,076 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) [2024-11-27 20:15:19,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:19,355 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. [2024-11-27 20:15:19,356 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 [2024-11-27 20:15:19,357 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) [2024-11-27 20:15:19,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 38 transitions. [2024-11-27 20:15:19,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 28 letters. Loop has 8 letters. [2024-11-27 20:15:19,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:19,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 36 letters. Loop has 8 letters. [2024-11-27 20:15:19,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:19,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 38 transitions. Stem has 28 letters. Loop has 16 letters. [2024-11-27 20:15:19,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:19,362 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 136 states and 179 transitions. [2024-11-27 20:15:19,371 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:19,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 136 states to 122 states and 164 transitions. [2024-11-27 20:15:19,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2024-11-27 20:15:19,379 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2024-11-27 20:15:19,379 INFO L73 IsDeterministic]: Start isDeterministic. Operand 122 states and 164 transitions. [2024-11-27 20:15:19,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:19,380 INFO L218 hiAutomatonCegarLoop]: Abstraction has 122 states and 164 transitions. [2024-11-27 20:15:19,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states and 164 transitions. [2024-11-27 20:15:19,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 113. [2024-11-27 20:15:19,400 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) [2024-11-27 20:15:19,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 148 transitions. [2024-11-27 20:15:19,402 INFO L240 hiAutomatonCegarLoop]: Abstraction has 113 states and 148 transitions. [2024-11-27 20:15:19,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:19,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 20:15:19,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-27 20:15:19,404 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) [2024-11-27 20:15:19,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:19,788 INFO L93 Difference]: Finished difference Result 127 states and 158 transitions. [2024-11-27 20:15:19,789 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 127 states and 158 transitions. [2024-11-27 20:15:19,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:19,797 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 127 states to 119 states and 150 transitions. [2024-11-27 20:15:19,801 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 84 [2024-11-27 20:15:19,801 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 84 [2024-11-27 20:15:19,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 150 transitions. [2024-11-27 20:15:19,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:19,802 INFO L218 hiAutomatonCegarLoop]: Abstraction has 119 states and 150 transitions. [2024-11-27 20:15:19,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 150 transitions. [2024-11-27 20:15:19,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 115. [2024-11-27 20:15:19,820 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) [2024-11-27 20:15:19,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 146 transitions. [2024-11-27 20:15:19,822 INFO L240 hiAutomatonCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-27 20:15:19,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:15:19,825 INFO L425 stractBuchiCegarLoop]: Abstraction has 115 states and 146 transitions. [2024-11-27 20:15:19,827 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-11-27 20:15:19,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 115 states and 146 transitions. [2024-11-27 20:15:19,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2024-11-27 20:15:19,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:19,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:19,839 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] [2024-11-27 20:15:19,842 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] [2024-11-27 20:15:19,842 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;" [2024-11-27 20:15:19,842 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;" [2024-11-27 20:15:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash 246620694, now seen corresponding path program 1 times [2024-11-27 20:15:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:19,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61974279] [2024-11-27 20:15:19,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,041 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-27 20:15:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,197 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,208 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:20,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,229 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:20,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,234 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:20,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61974279] [2024-11-27 20:15:20,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61974279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:20,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540480572] [2024-11-27 20:15:20,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:20,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:20,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:20,242 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:20,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-27 20:15:20,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:20,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 20:15:20,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:20,452 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:20,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540480572] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:20,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:20,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 19 [2024-11-27 20:15:20,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610478718] [2024-11-27 20:15:20,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:20,872 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:20,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:20,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1802681815, now seen corresponding path program 1 times [2024-11-27 20:15:20,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:20,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699047108] [2024-11-27 20:15:20,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:20,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,005 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-27 20:15:21,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,106 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,170 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,199 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:21,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,217 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,220 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,226 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,229 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,232 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-27 20:15:21,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,323 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,329 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,346 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,352 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,376 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,383 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-27 20:15:21,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699047108] [2024-11-27 20:15:21,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1699047108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840219886] [2024-11-27 20:15:21,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:21,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:21,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:21,393 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:21,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2024-11-27 20:15:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:21,477 INFO L256 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-27 20:15:21,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:21,585 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:22,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840219886] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:22,008 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:22,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2024-11-27 20:15:22,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85534770] [2024-11-27 20:15:22,008 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:22,009 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 20:15:22,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:22,010 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-27 20:15:22,010 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=325, Unknown=0, NotChecked=0, Total=380 [2024-11-27 20:15:22,010 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) [2024-11-27 20:15:22,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:22,446 INFO L93 Difference]: Finished difference Result 123 states and 148 transitions. [2024-11-27 20:15:22,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 148 transitions. [2024-11-27 20:15:22,449 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-27 20:15:22,453 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 121 states and 146 transitions. [2024-11-27 20:15:22,456 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 86 [2024-11-27 20:15:22,456 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 86 [2024-11-27 20:15:22,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 121 states and 146 transitions. [2024-11-27 20:15:22,456 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:22,456 INFO L218 hiAutomatonCegarLoop]: Abstraction has 121 states and 146 transitions. [2024-11-27 20:15:22,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states and 146 transitions. [2024-11-27 20:15:22,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 117. [2024-11-27 20:15:22,470 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) [2024-11-27 20:15:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 142 transitions. [2024-11-27 20:15:22,476 INFO L240 hiAutomatonCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-27 20:15:22,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-27 20:15:22,477 INFO L425 stractBuchiCegarLoop]: Abstraction has 117 states and 142 transitions. [2024-11-27 20:15:22,477 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-11-27 20:15:22,477 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 117 states and 142 transitions. [2024-11-27 20:15:22,478 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 12 [2024-11-27 20:15:22,478 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:22,478 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:22,479 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] [2024-11-27 20:15:22,479 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:22,480 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;" [2024-11-27 20:15:22,480 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;" [2024-11-27 20:15:22,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:22,483 INFO L85 PathProgramCache]: Analyzing trace with hash -671318086, now seen corresponding path program 1 times [2024-11-27 20:15:22,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:22,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129240370] [2024-11-27 20:15:22,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:22,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:22,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,571 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:15:22,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,627 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:22,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,659 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:22,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,665 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-27 20:15:22,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:22,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129240370] [2024-11-27 20:15:22,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129240370] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:22,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726269541] [2024-11-27 20:15:22,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:22,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:22,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:22,673 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:22,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-11-27 20:15:22,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:22,734 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:15:22,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:22,825 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:23,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726269541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:23,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:23,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 16 [2024-11-27 20:15:23,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408936451] [2024-11-27 20:15:23,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:23,103 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:23,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 1 times [2024-11-27 20:15:23,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:23,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088869819] [2024-11-27 20:15:23,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:23,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:23,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:23,113 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:23,301 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:23,301 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:23,301 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:23,301 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:23,301 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:23,301 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,302 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:23,302 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:23,302 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration6_Loop [2024-11-27 20:15:23,302 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:23,302 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:23,302 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,308 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,315 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,320 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,322 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,376 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:23,376 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:23,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,381 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-11-27 20:15:23,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,384 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,402 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,402 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-11-27 20:15:23,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,417 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-11-27 20:15:23,420 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,420 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,440 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,441 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-11-27 20:15:23,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,456 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-11-27 20:15:23,461 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,462 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,484 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,484 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,496 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,499 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-11-27 20:15:23,505 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,505 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,521 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,522 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=1} Honda state: {fibo2_#t~ret6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,533 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-11-27 20:15:23,539 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,539 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,558 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,558 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,566 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,569 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,572 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,572 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-11-27 20:15:23,587 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,588 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-11-27 20:15:23,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,601 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-11-27 20:15:23,605 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,605 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,623 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,623 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,634 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-11-27 20:15:23,639 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,651 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:23,651 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:23,657 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-11-27 20:15:23,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,659 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Waiting until timeout for monitored process [2024-11-27 20:15:23,662 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:23,662 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (45)] Ended with exit code 0 [2024-11-27 20:15:23,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,684 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-11-27 20:15:23,688 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:23,689 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:23,706 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:23,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-11-27 20:15:23,715 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:23,715 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:23,715 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:23,715 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:23,715 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:23,715 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,716 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:23,716 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:23,716 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration6_Loop [2024-11-27 20:15:23,716 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:23,716 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:23,717 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,720 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,723 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,726 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,729 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,732 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,734 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,736 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,738 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:23,792 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:23,792 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:23,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,795 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-11-27 20:15:23,799 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 [2024-11-27 20:15:23,812 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,813 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,813 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,813 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,813 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,813 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,813 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,815 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-11-27 20:15:23,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,827 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-11-27 20:15:23,832 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 [2024-11-27 20:15:23,845 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,845 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,846 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,846 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,846 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,846 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,846 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,848 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,858 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-11-27 20:15:23,862 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 [2024-11-27 20:15:23,876 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,876 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,877 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,877 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,877 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,877 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,877 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,879 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,890 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-11-27 20:15:23,894 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 [2024-11-27 20:15:23,908 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,908 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,908 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,908 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,908 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,909 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,909 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,911 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:23,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,923 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-11-27 20:15:23,928 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 [2024-11-27 20:15:23,942 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,942 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,942 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,942 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,942 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,943 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,943 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,946 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-11-27 20:15:23,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,957 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-11-27 20:15:23,961 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 [2024-11-27 20:15:23,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:23,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:23,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:23,976 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:23,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:23,976 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:23,976 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:23,978 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:23,987 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-11-27 20:15:23,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:23,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:23,989 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:23,994 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-11-27 20:15:23,998 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 [2024-11-27 20:15:24,012 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:24,013 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:24,013 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:24,013 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:24,013 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:24,014 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:24,014 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:24,015 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:24,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Ended with exit code 0 [2024-11-27 20:15:24,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:24,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:24,023 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:24,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-11-27 20:15:24,025 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 [2024-11-27 20:15:24,036 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:24,036 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:24,036 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:24,036 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:24,036 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:24,037 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:24,037 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:24,040 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:24,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Ended with exit code 0 [2024-11-27 20:15:24,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:24,054 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:24,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-11-27 20:15:24,057 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 [2024-11-27 20:15:24,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:24,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:24,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:24,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:24,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:24,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:24,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:24,073 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:24,075 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 20:15:24,075 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:15:24,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:24,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:24,079 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:24,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:24,082 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:24,082 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:24,082 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-27 20:15:24,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-11-27 20:15:24,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:24,092 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:24,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:24,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:24,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:24,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:24,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:24,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:24,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:24,653 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 [2024-11-27 20:15:24,653 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) [2024-11-27 20:15:25,192 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. [2024-11-27 20:15:25,193 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 [2024-11-27 20:15:25,194 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) [2024-11-27 20:15:25,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 67 transitions. [2024-11-27 20:15:25,195 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-27 20:15:25,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:25,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 56 letters. Loop has 14 letters. [2024-11-27 20:15:25,196 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:25,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 67 transitions. Stem has 42 letters. Loop has 28 letters. [2024-11-27 20:15:25,197 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:25,197 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 344 states and 428 transitions. [2024-11-27 20:15:25,205 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 24 [2024-11-27 20:15:25,209 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 344 states to 221 states and 265 transitions. [2024-11-27 20:15:25,209 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 128 [2024-11-27 20:15:25,210 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 138 [2024-11-27 20:15:25,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 221 states and 265 transitions. [2024-11-27 20:15:25,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:25,210 INFO L218 hiAutomatonCegarLoop]: Abstraction has 221 states and 265 transitions. [2024-11-27 20:15:25,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states and 265 transitions. [2024-11-27 20:15:25,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 201. [2024-11-27 20:15:25,231 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) [2024-11-27 20:15:25,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 241 transitions. [2024-11-27 20:15:25,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 201 states and 241 transitions. [2024-11-27 20:15:25,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:25,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-27 20:15:25,236 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=197, Unknown=0, NotChecked=0, Total=240 [2024-11-27 20:15:25,237 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) [2024-11-27 20:15:25,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:25,514 INFO L93 Difference]: Finished difference Result 302 states and 389 transitions. [2024-11-27 20:15:25,515 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 302 states and 389 transitions. [2024-11-27 20:15:25,520 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 44 [2024-11-27 20:15:25,528 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 302 states to 263 states and 341 transitions. [2024-11-27 20:15:25,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 154 [2024-11-27 20:15:25,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 154 [2024-11-27 20:15:25,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 263 states and 341 transitions. [2024-11-27 20:15:25,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:25,532 INFO L218 hiAutomatonCegarLoop]: Abstraction has 263 states and 341 transitions. [2024-11-27 20:15:25,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states and 341 transitions. [2024-11-27 20:15:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 223. [2024-11-27 20:15:25,545 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) [2024-11-27 20:15:25,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 285 transitions. [2024-11-27 20:15:25,548 INFO L240 hiAutomatonCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-11-27 20:15:25,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:15:25,549 INFO L425 stractBuchiCegarLoop]: Abstraction has 223 states and 285 transitions. [2024-11-27 20:15:25,549 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-11-27 20:15:25,549 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 223 states and 285 transitions. [2024-11-27 20:15:25,551 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 34 [2024-11-27 20:15:25,551 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:25,551 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:25,552 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] [2024-11-27 20:15:25,552 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:25,552 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" [2024-11-27 20:15:25,553 INFO L749 eck$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;" [2024-11-27 20:15:25,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:25,553 INFO L85 PathProgramCache]: Analyzing trace with hash -25749769, now seen corresponding path program 1 times [2024-11-27 20:15:25,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:25,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216311127] [2024-11-27 20:15:25,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:25,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:25,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,642 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-27 20:15:25,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,671 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-27 20:15:25,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,676 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:25,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,679 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216311127] [2024-11-27 20:15:25,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216311127] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:25,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699007366] [2024-11-27 20:15:25,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:25,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:25,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:25,684 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:25,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2024-11-27 20:15:25,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:25,735 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:15:25,736 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:25,786 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:25,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699007366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:25,950 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:25,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 13 [2024-11-27 20:15:25,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376297171] [2024-11-27 20:15:25,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:25,951 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:25,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:25,952 INFO L85 PathProgramCache]: Analyzing trace with hash -815837104, now seen corresponding path program 1 times [2024-11-27 20:15:25,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:25,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308332210] [2024-11-27 20:15:25,952 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:25,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:25,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:25,973 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:25,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:25,977 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:26,163 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:26,163 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:26,163 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:26,163 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:26,163 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:26,163 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,163 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:26,163 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:26,163 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration7_Loop [2024-11-27 20:15:26,164 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:26,164 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:26,164 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,166 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,170 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,172 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,174 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,178 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,183 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,238 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:26,238 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:26,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,241 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-11-27 20:15:26,246 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,246 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,260 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,260 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-11-27 20:15:26,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,268 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Waiting until timeout for monitored process [2024-11-27 20:15:26,271 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,271 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,283 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,283 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=2} Honda state: {fibo1_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (59)] Ended with exit code 0 [2024-11-27 20:15:26,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,292 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Waiting until timeout for monitored process [2024-11-27 20:15:26,295 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,295 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,307 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,307 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=0} Honda state: {fibo2_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,313 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (60)] Ended with exit code 0 [2024-11-27 20:15:26,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,315 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Waiting until timeout for monitored process [2024-11-27 20:15:26,317 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,317 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,329 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,329 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,335 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (61)] Ended with exit code 0 [2024-11-27 20:15:26,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,337 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Waiting until timeout for monitored process [2024-11-27 20:15:26,339 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,339 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,351 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,351 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (62)] Ended with exit code 0 [2024-11-27 20:15:26,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,359 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Waiting until timeout for monitored process [2024-11-27 20:15:26,362 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,362 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,373 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,374 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (63)] Ended with exit code 0 [2024-11-27 20:15:26,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,382 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,383 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Waiting until timeout for monitored process [2024-11-27 20:15:26,384 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,385 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,397 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,397 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=1} Honda state: {fibo1_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (64)] Ended with exit code 0 [2024-11-27 20:15:26,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,406 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Waiting until timeout for monitored process [2024-11-27 20:15:26,408 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,408 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,422 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:26,422 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:26,429 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (65)] Ended with exit code 0 [2024-11-27 20:15:26,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,432 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Waiting until timeout for monitored process [2024-11-27 20:15:26,435 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:26,435 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (66)] Ended with exit code 0 [2024-11-27 20:15:26,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,456 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Waiting until timeout for monitored process [2024-11-27 20:15:26,459 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:26,459 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:26,480 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:26,492 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (67)] Ended with exit code 0 [2024-11-27 20:15:26,492 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:26,493 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:26,493 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:26,493 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:26,493 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:26,493 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,493 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:26,493 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:26,493 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration7_Loop [2024-11-27 20:15:26,493 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:26,493 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:26,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,500 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,507 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,510 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:26,572 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:26,572 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:26,572 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,574 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Waiting until timeout for monitored process [2024-11-27 20:15:26,578 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 [2024-11-27 20:15:26,591 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,591 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,591 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,592 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,592 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,592 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,592 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,595 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (68)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:26,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,604 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Waiting until timeout for monitored process [2024-11-27 20:15:26,607 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 [2024-11-27 20:15:26,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,621 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,621 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,622 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,624 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (69)] Ended with exit code 0 [2024-11-27 20:15:26,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,637 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Waiting until timeout for monitored process [2024-11-27 20:15:26,640 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 [2024-11-27 20:15:26,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,656 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,663 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (70)] Ended with exit code 0 [2024-11-27 20:15:26,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,665 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Waiting until timeout for monitored process [2024-11-27 20:15:26,668 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 [2024-11-27 20:15:26,682 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,682 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,682 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,682 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,683 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,683 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,683 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,685 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (71)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:26,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,693 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,695 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Waiting until timeout for monitored process [2024-11-27 20:15:26,697 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 [2024-11-27 20:15:26,711 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,711 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,711 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,711 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,711 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,712 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,712 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,713 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (72)] Ended with exit code 0 [2024-11-27 20:15:26,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,722 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Waiting until timeout for monitored process [2024-11-27 20:15:26,725 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 [2024-11-27 20:15:26,738 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,738 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,738 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,738 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,738 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,738 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,738 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,740 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,746 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (73)] Ended with exit code 0 [2024-11-27 20:15:26,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,748 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Waiting until timeout for monitored process [2024-11-27 20:15:26,751 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 [2024-11-27 20:15:26,764 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,764 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,765 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,765 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,765 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,765 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,765 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,767 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,773 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (74)] Ended with exit code 0 [2024-11-27 20:15:26,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,775 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Waiting until timeout for monitored process [2024-11-27 20:15:26,778 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 [2024-11-27 20:15:26,791 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,792 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,792 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,792 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,792 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,793 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,793 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,795 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:26,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (75)] Ended with exit code 0 [2024-11-27 20:15:26,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,805 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Waiting until timeout for monitored process [2024-11-27 20:15:26,807 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 [2024-11-27 20:15:26,821 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:26,821 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:26,821 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:26,821 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:26,821 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:26,822 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:26,822 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:26,827 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:26,831 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:15:26,831 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:15:26,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:26,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:26,837 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:26,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Waiting until timeout for monitored process [2024-11-27 20:15:26,843 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:26,843 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:26,843 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:26,843 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_~n) = 1*fibo1_~n Supporting invariants [] [2024-11-27 20:15:26,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (76)] Ended with exit code 0 [2024-11-27 20:15:26,854 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:26,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:26,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:26,929 INFO L256 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:15:26,931 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:27,268 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:27,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:27,417 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:27,418 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 [2024-11-27 20:15:27,418 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) [2024-11-27 20:15:27,942 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. [2024-11-27 20:15:27,945 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 [2024-11-27 20:15:27,946 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) [2024-11-27 20:15:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 72 transitions. [2024-11-27 20:15:27,946 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 46 letters. Loop has 14 letters. [2024-11-27 20:15:27,947 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:27,947 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 60 letters. Loop has 14 letters. [2024-11-27 20:15:27,948 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:27,948 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 46 letters. Loop has 28 letters. [2024-11-27 20:15:27,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:27,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 965 states and 1206 transitions. [2024-11-27 20:15:27,967 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 77 [2024-11-27 20:15:27,980 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 965 states to 651 states and 796 transitions. [2024-11-27 20:15:27,980 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 291 [2024-11-27 20:15:27,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2024-11-27 20:15:27,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 651 states and 796 transitions. [2024-11-27 20:15:27,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:27,982 INFO L218 hiAutomatonCegarLoop]: Abstraction has 651 states and 796 transitions. [2024-11-27 20:15:27,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states and 796 transitions. [2024-11-27 20:15:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 607. [2024-11-27 20:15:28,017 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) [2024-11-27 20:15:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 607 states to 607 states and 745 transitions. [2024-11-27 20:15:28,025 INFO L240 hiAutomatonCegarLoop]: Abstraction has 607 states and 745 transitions. [2024-11-27 20:15:28,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:28,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:15:28,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:15:28,026 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) [2024-11-27 20:15:28,122 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (77)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:28,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:28,254 INFO L93 Difference]: Finished difference Result 620 states and 760 transitions. [2024-11-27 20:15:28,254 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 620 states and 760 transitions. [2024-11-27 20:15:28,263 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 73 [2024-11-27 20:15:28,271 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 620 states to 615 states and 753 transitions. [2024-11-27 20:15:28,271 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 299 [2024-11-27 20:15:28,272 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 299 [2024-11-27 20:15:28,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 615 states and 753 transitions. [2024-11-27 20:15:28,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:28,272 INFO L218 hiAutomatonCegarLoop]: Abstraction has 615 states and 753 transitions. [2024-11-27 20:15:28,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states and 753 transitions. [2024-11-27 20:15:28,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 609. [2024-11-27 20:15:28,291 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) [2024-11-27 20:15:28,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 746 transitions. [2024-11-27 20:15:28,296 INFO L240 hiAutomatonCegarLoop]: Abstraction has 609 states and 746 transitions. [2024-11-27 20:15:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-27 20:15:28,298 INFO L425 stractBuchiCegarLoop]: Abstraction has 609 states and 746 transitions. [2024-11-27 20:15:28,298 INFO L332 stractBuchiCegarLoop]: ======== Iteration 8 ============ [2024-11-27 20:15:28,298 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 609 states and 746 transitions. [2024-11-27 20:15:28,307 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 73 [2024-11-27 20:15:28,307 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:28,307 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:28,308 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] [2024-11-27 20:15:28,309 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:28,309 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);"< [2024-11-27 20:15:28,309 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);"< [2024-11-27 20:15:28,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:28,309 INFO L85 PathProgramCache]: Analyzing trace with hash -205691575, now seen corresponding path program 1 times [2024-11-27 20:15:28,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:28,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345617252] [2024-11-27 20:15:28,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:28,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,402 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-27 20:15:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,441 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:28,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,520 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:28,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,525 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,530 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-27 20:15:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:28,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345617252] [2024-11-27 20:15:28,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345617252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:28,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579050433] [2024-11-27 20:15:28,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:28,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:28,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:28,558 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:28,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2024-11-27 20:15:28,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:28,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-27 20:15:28,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:28,698 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:28,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579050433] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:28,974 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:28,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 18 [2024-11-27 20:15:28,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789446934] [2024-11-27 20:15:28,974 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:28,974 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:28,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:28,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1206117480, now seen corresponding path program 3 times [2024-11-27 20:15:28,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:28,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068362256] [2024-11-27 20:15:28,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:28,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:28,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:28,978 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:28,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:28,981 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:29,125 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:29,125 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:29,126 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:29,126 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:29,126 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:29,126 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,126 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:29,126 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:29,126 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration8_Loop [2024-11-27 20:15:29,126 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:29,126 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:29,128 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,143 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,146 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,149 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,151 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,154 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,156 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,215 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:29,216 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:29,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,218 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Waiting until timeout for monitored process [2024-11-27 20:15:29,222 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:29,222 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:29,237 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:29,237 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:29,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (79)] Ended with exit code 0 [2024-11-27 20:15:29,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,247 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Waiting until timeout for monitored process [2024-11-27 20:15:29,249 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:29,250 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:29,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (80)] Ended with exit code 0 [2024-11-27 20:15:29,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,273 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,274 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Waiting until timeout for monitored process [2024-11-27 20:15:29,276 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:29,276 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:29,316 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:29,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (81)] Ended with exit code 0 [2024-11-27 20:15:29,322 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:29,322 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:29,322 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:29,322 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:29,322 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:29,322 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,322 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:29,322 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:29,322 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration8_Loop [2024-11-27 20:15:29,322 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:29,322 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:29,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,340 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,342 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,345 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,348 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,350 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,352 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:29,411 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:29,411 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:29,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,413 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Waiting until timeout for monitored process [2024-11-27 20:15:29,416 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 [2024-11-27 20:15:29,428 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:29,428 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:29,428 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:29,428 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:29,429 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:29,429 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:29,429 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:29,431 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:29,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (82)] Ended with exit code 0 [2024-11-27 20:15:29,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,439 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Waiting until timeout for monitored process [2024-11-27 20:15:29,442 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 [2024-11-27 20:15:29,455 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:29,455 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:29,455 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:29,455 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:29,455 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:29,456 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:29,456 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:29,459 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:29,463 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:15:29,463 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:15:29,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:29,463 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:29,466 INFO L229 MonitoredProcess]: Starting monitored process 84 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:29,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Waiting until timeout for monitored process [2024-11-27 20:15:29,468 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:29,468 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:29,468 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:29,468 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] [2024-11-27 20:15:29,479 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (83)] Ended with exit code 0 [2024-11-27 20:15:29,480 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:29,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:29,555 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:29,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:29,713 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (84)] Ended with exit code 0 [2024-11-27 20:15:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:29,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:29,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:30,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:30,031 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 [2024-11-27 20:15:30,032 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) [2024-11-27 20:15:30,230 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. [2024-11-27 20:15:30,231 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 [2024-11-27 20:15:30,232 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) [2024-11-27 20:15:30,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2024-11-27 20:15:30,233 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-27 20:15:30,233 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:30,233 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:30,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:30,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:30,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:30,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:30,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:30,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:30,677 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:30,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:30,750 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 [2024-11-27 20:15:30,751 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) [2024-11-27 20:15:30,917 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. [2024-11-27 20:15:30,917 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 [2024-11-27 20:15:30,918 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) [2024-11-27 20:15:30,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 34 transitions. [2024-11-27 20:15:30,918 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 34 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-27 20:15:30,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:30,918 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:30,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:30,990 INFO L256 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:30,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:31,384 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:31,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:31,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:31,448 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 [2024-11-27 20:15:31,449 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) [2024-11-27 20:15:31,658 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. [2024-11-27 20:15:31,659 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 [2024-11-27 20:15:31,660 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) [2024-11-27 20:15:31,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 42 transitions. [2024-11-27 20:15:31,660 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 41 letters. Loop has 8 letters. [2024-11-27 20:15:31,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:31,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 49 letters. Loop has 8 letters. [2024-11-27 20:15:31,661 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:31,661 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 42 transitions. Stem has 41 letters. Loop has 16 letters. [2024-11-27 20:15:31,662 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:31,662 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1304 states and 1564 transitions. [2024-11-27 20:15:31,679 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 173 [2024-11-27 20:15:31,690 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1304 states to 858 states and 1054 transitions. [2024-11-27 20:15:31,691 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 321 [2024-11-27 20:15:31,691 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 347 [2024-11-27 20:15:31,692 INFO L73 IsDeterministic]: Start isDeterministic. Operand 858 states and 1054 transitions. [2024-11-27 20:15:31,692 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:31,692 INFO L218 hiAutomatonCegarLoop]: Abstraction has 858 states and 1054 transitions. [2024-11-27 20:15:31,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states and 1054 transitions. [2024-11-27 20:15:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 765. [2024-11-27 20:15:31,729 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) [2024-11-27 20:15:31,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 765 states to 765 states and 935 transitions. [2024-11-27 20:15:31,735 INFO L240 hiAutomatonCegarLoop]: Abstraction has 765 states and 935 transitions. [2024-11-27 20:15:31,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:31,736 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 20:15:31,736 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-27 20:15:31,737 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) [2024-11-27 20:15:32,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:32,217 INFO L93 Difference]: Finished difference Result 781 states and 953 transitions. [2024-11-27 20:15:32,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 781 states and 953 transitions. [2024-11-27 20:15:32,227 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 155 [2024-11-27 20:15:32,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 781 states to 779 states and 949 transitions. [2024-11-27 20:15:32,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 333 [2024-11-27 20:15:32,236 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 333 [2024-11-27 20:15:32,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 779 states and 949 transitions. [2024-11-27 20:15:32,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:32,237 INFO L218 hiAutomatonCegarLoop]: Abstraction has 779 states and 949 transitions. [2024-11-27 20:15:32,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states and 949 transitions. [2024-11-27 20:15:32,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 766. [2024-11-27 20:15:32,258 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) [2024-11-27 20:15:32,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 934 transitions. [2024-11-27 20:15:32,263 INFO L240 hiAutomatonCegarLoop]: Abstraction has 766 states and 934 transitions. [2024-11-27 20:15:32,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-27 20:15:32,265 INFO L425 stractBuchiCegarLoop]: Abstraction has 766 states and 934 transitions. [2024-11-27 20:15:32,265 INFO L332 stractBuchiCegarLoop]: ======== Iteration 9 ============ [2024-11-27 20:15:32,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 766 states and 934 transitions. [2024-11-27 20:15:32,270 INFO L131 ngComponentsAnalysis]: Automaton has 7 accepting balls. 152 [2024-11-27 20:15:32,271 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:32,271 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:32,272 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] [2024-11-27 20:15:32,272 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:32,272 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" [2024-11-27 20:15:32,272 INFO L749 eck$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;" [2024-11-27 20:15:32,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:32,273 INFO L85 PathProgramCache]: Analyzing trace with hash 195481506, now seen corresponding path program 1 times [2024-11-27 20:15:32,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:32,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542258706] [2024-11-27 20:15:32,273 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:32,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:32,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,416 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-27 20:15:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,422 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-27 20:15:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,425 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-11-27 20:15:32,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,433 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-27 20:15:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:32,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542258706] [2024-11-27 20:15:32,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542258706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:32,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107078037] [2024-11-27 20:15:32,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:32,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:32,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:32,445 INFO L229 MonitoredProcess]: Starting monitored process 85 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:32,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2024-11-27 20:15:32,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:32,501 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:15:32,502 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:32,580 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:32,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107078037] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:32,787 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:32,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 15 [2024-11-27 20:15:32,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961922152] [2024-11-27 20:15:32,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:32,788 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:32,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:32,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1515734512, now seen corresponding path program 2 times [2024-11-27 20:15:32,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:32,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117234708] [2024-11-27 20:15:32,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:32,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:32,792 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:32,795 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:32,990 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:32,990 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:32,990 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:32,990 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:32,990 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:32,990 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:32,990 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:32,990 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:32,990 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration9_Loop [2024-11-27 20:15:32,990 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:32,990 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:32,991 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:32,994 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:32,999 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,002 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,004 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,006 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,008 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,016 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,076 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:33,076 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:33,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,079 INFO L229 MonitoredProcess]: Starting monitored process 86 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Waiting until timeout for monitored process [2024-11-27 20:15:33,082 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,096 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,096 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#in~n=2} Honda state: {fibo2_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,103 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (86)] Ended with exit code 0 [2024-11-27 20:15:33,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,106 INFO L229 MonitoredProcess]: Starting monitored process 87 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Waiting until timeout for monitored process [2024-11-27 20:15:33,108 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,108 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,123 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,123 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,131 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (87)] Ended with exit code 0 [2024-11-27 20:15:33,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,133 INFO L229 MonitoredProcess]: Starting monitored process 88 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Waiting until timeout for monitored process [2024-11-27 20:15:33,136 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,136 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,152 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,152 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=1} Honda state: {fibo2_#t~ret6=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,159 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (88)] Ended with exit code 0 [2024-11-27 20:15:33,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,161 INFO L229 MonitoredProcess]: Starting monitored process 89 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,162 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Waiting until timeout for monitored process [2024-11-27 20:15:33,164 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,164 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,179 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,179 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret7=0} Honda state: {fibo2_#t~ret7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (89)] Ended with exit code 0 [2024-11-27 20:15:33,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,188 INFO L229 MonitoredProcess]: Starting monitored process 90 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Waiting until timeout for monitored process [2024-11-27 20:15:33,191 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,191 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,206 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,206 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (90)] Ended with exit code 0 [2024-11-27 20:15:33,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,215 INFO L229 MonitoredProcess]: Starting monitored process 91 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Waiting until timeout for monitored process [2024-11-27 20:15:33,218 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,218 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,232 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:33,232 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:33,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (91)] Ended with exit code 0 [2024-11-27 20:15:33,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,242 INFO L229 MonitoredProcess]: Starting monitored process 92 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Waiting until timeout for monitored process [2024-11-27 20:15:33,245 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:33,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (92)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:33,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,270 INFO L229 MonitoredProcess]: Starting monitored process 93 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Waiting until timeout for monitored process [2024-11-27 20:15:33,272 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:33,272 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:33,289 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:33,296 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (93)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:33,297 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:33,297 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:33,297 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:33,297 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:33,297 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:33,297 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,297 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:33,297 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:33,297 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration9_Loop [2024-11-27 20:15:33,297 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:33,297 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:33,298 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,301 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,303 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,305 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,310 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,312 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,314 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:33,382 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:33,382 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:33,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,385 INFO L229 MonitoredProcess]: Starting monitored process 94 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Waiting until timeout for monitored process [2024-11-27 20:15:33,388 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 [2024-11-27 20:15:33,401 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,401 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,401 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,401 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,401 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,402 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,402 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,405 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,416 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (94)] Ended with exit code 0 [2024-11-27 20:15:33,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,419 INFO L229 MonitoredProcess]: Starting monitored process 95 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Waiting until timeout for monitored process [2024-11-27 20:15:33,422 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 [2024-11-27 20:15:33,436 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,436 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,436 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,436 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,436 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,437 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,437 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,438 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (95)] Ended with exit code 0 [2024-11-27 20:15:33,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,447 INFO L229 MonitoredProcess]: Starting monitored process 96 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Waiting until timeout for monitored process [2024-11-27 20:15:33,450 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 [2024-11-27 20:15:33,463 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,464 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,464 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,464 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,464 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,464 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,464 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,466 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,473 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (96)] Ended with exit code 0 [2024-11-27 20:15:33,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,476 INFO L229 MonitoredProcess]: Starting monitored process 97 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Waiting until timeout for monitored process [2024-11-27 20:15:33,478 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 [2024-11-27 20:15:33,492 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,492 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,492 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,492 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,492 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,493 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,493 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,495 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (97)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:33,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,504 INFO L229 MonitoredProcess]: Starting monitored process 98 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Waiting until timeout for monitored process [2024-11-27 20:15:33,507 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 [2024-11-27 20:15:33,521 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,521 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,521 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,521 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,521 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,522 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,522 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,523 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (98)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:33,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,533 INFO L229 MonitoredProcess]: Starting monitored process 99 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Waiting until timeout for monitored process [2024-11-27 20:15:33,535 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 [2024-11-27 20:15:33,549 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,549 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,549 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,549 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,549 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,549 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,549 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,551 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (99)] Ended with exit code 0 [2024-11-27 20:15:33,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,561 INFO L229 MonitoredProcess]: Starting monitored process 100 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Waiting until timeout for monitored process [2024-11-27 20:15:33,564 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 [2024-11-27 20:15:33,578 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,578 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,578 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,579 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,579 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,579 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,579 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,581 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:33,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (100)] Ended with exit code 0 [2024-11-27 20:15:33,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,590 INFO L229 MonitoredProcess]: Starting monitored process 101 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Waiting until timeout for monitored process [2024-11-27 20:15:33,592 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 [2024-11-27 20:15:33,607 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:33,607 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:33,607 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:33,607 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:33,607 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:33,608 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:33,608 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:33,610 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:33,613 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 20:15:33,613 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:15:33,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:33,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:33,615 INFO L229 MonitoredProcess]: Starting monitored process 102 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:33,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Waiting until timeout for monitored process [2024-11-27 20:15:33,617 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:33,618 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:33,618 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:33,618 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-27 20:15:33,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (101)] Ended with exit code 0 [2024-11-27 20:15:33,625 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:33,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:33,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:33,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:33,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:33,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:33,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:33,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:34,118 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 [2024-11-27 20:15:34,118 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) [2024-11-27 20:15:34,634 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. [2024-11-27 20:15:34,635 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 [2024-11-27 20:15:34,636 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) [2024-11-27 20:15:34,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 60 transitions. [2024-11-27 20:15:34,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 60 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-27 20:15:34,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:34,637 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:34,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:34,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:34,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:34,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:34,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (102)] Ended with exit code 0 [2024-11-27 20:15:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:35,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:35,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:35,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:35,181 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 [2024-11-27 20:15:35,182 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) [2024-11-27 20:15:35,584 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. [2024-11-27 20:15:35,584 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 [2024-11-27 20:15:35,586 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) [2024-11-27 20:15:35,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-11-27 20:15:35,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-27 20:15:35,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:35,588 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:35,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:35,679 INFO L256 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-27 20:15:35,680 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:35,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:35,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 20:15:35,977 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:36,097 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 [2024-11-27 20:15:36,097 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) [2024-11-27 20:15:36,669 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. [2024-11-27 20:15:36,670 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 [2024-11-27 20:15:36,671 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) [2024-11-27 20:15:36,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 72 transitions. [2024-11-27 20:15:36,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 42 letters. Loop has 14 letters. [2024-11-27 20:15:36,673 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:36,673 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 56 letters. Loop has 14 letters. [2024-11-27 20:15:36,674 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:36,674 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 72 transitions. Stem has 42 letters. Loop has 28 letters. [2024-11-27 20:15:36,679 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:36,679 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2584 states and 3194 transitions. [2024-11-27 20:15:36,718 INFO L131 ngComponentsAnalysis]: Automaton has 11 accepting balls. 397 [2024-11-27 20:15:36,738 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2584 states to 1324 states and 1643 transitions. [2024-11-27 20:15:36,739 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 538 [2024-11-27 20:15:36,741 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 572 [2024-11-27 20:15:36,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1324 states and 1643 transitions. [2024-11-27 20:15:36,743 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:36,743 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1324 states and 1643 transitions. [2024-11-27 20:15:36,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states and 1643 transitions. [2024-11-27 20:15:36,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 977. [2024-11-27 20:15:36,793 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) [2024-11-27 20:15:36,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1178 transitions. [2024-11-27 20:15:36,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 977 states and 1178 transitions. [2024-11-27 20:15:36,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:36,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-27 20:15:36,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2024-11-27 20:15:36,802 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) [2024-11-27 20:15:37,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:37,141 INFO L93 Difference]: Finished difference Result 361 states and 400 transitions. [2024-11-27 20:15:37,141 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 361 states and 400 transitions. [2024-11-27 20:15:37,146 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 48 [2024-11-27 20:15:37,149 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 361 states to 236 states and 259 transitions. [2024-11-27 20:15:37,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2024-11-27 20:15:37,149 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2024-11-27 20:15:37,150 INFO L73 IsDeterministic]: Start isDeterministic. Operand 236 states and 259 transitions. [2024-11-27 20:15:37,151 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:37,151 INFO L218 hiAutomatonCegarLoop]: Abstraction has 236 states and 259 transitions. [2024-11-27 20:15:37,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states and 259 transitions. [2024-11-27 20:15:37,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 161. [2024-11-27 20:15:37,158 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) [2024-11-27 20:15:37,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 178 transitions. [2024-11-27 20:15:37,160 INFO L240 hiAutomatonCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-11-27 20:15:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-27 20:15:37,161 INFO L425 stractBuchiCegarLoop]: Abstraction has 161 states and 178 transitions. [2024-11-27 20:15:37,161 INFO L332 stractBuchiCegarLoop]: ======== Iteration 10 ============ [2024-11-27 20:15:37,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 178 transitions. [2024-11-27 20:15:37,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2024-11-27 20:15:37,163 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:37,163 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:37,165 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [5, 5, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:37,165 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:37,166 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);" [2024-11-27 20:15:37,166 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);" [2024-11-27 20:15:37,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:37,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1886766591, now seen corresponding path program 1 times [2024-11-27 20:15:37,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:37,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088576222] [2024-11-27 20:15:37,168 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:37,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:37,393 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-27 20:15:37,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:37,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 20:15:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088576222] [2024-11-27 20:15:37,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088576222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:15:37,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665630079] [2024-11-27 20:15:37,398 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:37,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:15:37,399 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:37,401 INFO L229 MonitoredProcess]: Starting monitored process 103 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:15:37,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2024-11-27 20:15:37,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:37,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 20:15:37,464 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:37,515 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 20:15:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665630079] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 20:15:37,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 20:15:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2024-11-27 20:15:37,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098630708] [2024-11-27 20:15:37,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 20:15:37,659 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-11-27 20:15:37,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:37,660 INFO L85 PathProgramCache]: Analyzing trace with hash -2095272006, now seen corresponding path program 4 times [2024-11-27 20:15:37,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:37,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873343730] [2024-11-27 20:15:37,660 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:37,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:37,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:37,665 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:37,668 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:37,846 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:37,846 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:37,846 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:37,846 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:37,847 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:37,847 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:37,847 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:37,847 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:37,847 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration10_Loop [2024-11-27 20:15:37,847 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:37,847 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:37,848 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,852 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,854 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,859 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,862 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,865 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,876 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,879 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:37,962 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:37,962 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:37,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:37,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:37,966 INFO L229 MonitoredProcess]: Starting monitored process 104 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:37,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Waiting until timeout for monitored process [2024-11-27 20:15:37,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:37,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:37,994 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:37,994 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:38,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (104)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,009 INFO L229 MonitoredProcess]: Starting monitored process 105 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Waiting until timeout for monitored process [2024-11-27 20:15:38,015 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:38,015 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,035 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:38,035 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret5=0} Honda state: {fibo1_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:38,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (105)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,050 INFO L229 MonitoredProcess]: Starting monitored process 106 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Waiting until timeout for monitored process [2024-11-27 20:15:38,055 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:38,055 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,076 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:38,077 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:38,088 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (106)] Ended with exit code 0 [2024-11-27 20:15:38,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,090 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,093 INFO L229 MonitoredProcess]: Starting monitored process 107 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Waiting until timeout for monitored process [2024-11-27 20:15:38,098 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:38,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,122 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:38,122 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#in~n=0} Honda state: {fibo1_#in~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:38,135 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (107)] Ended with exit code 0 [2024-11-27 20:15:38,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,140 INFO L229 MonitoredProcess]: Starting monitored process 108 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:38,143 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Waiting until timeout for monitored process [2024-11-27 20:15:38,165 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:38,166 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:38,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (108)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,184 INFO L229 MonitoredProcess]: Starting monitored process 109 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Waiting until timeout for monitored process [2024-11-27 20:15:38,187 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:38,187 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,232 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (109)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,235 INFO L229 MonitoredProcess]: Starting monitored process 110 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Waiting until timeout for monitored process [2024-11-27 20:15:38,240 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:38,240 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:38,465 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:38,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (110)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,471 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:38,471 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:38,471 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:38,471 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:38,471 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:38,471 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,471 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:38,471 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:38,472 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration10_Loop [2024-11-27 20:15:38,472 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:38,472 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:38,472 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,476 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,478 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,482 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,484 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,486 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,496 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,498 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:38,573 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:38,573 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:38,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,575 INFO L229 MonitoredProcess]: Starting monitored process 111 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Waiting until timeout for monitored process [2024-11-27 20:15:38,579 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 [2024-11-27 20:15:38,593 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,594 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,594 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,594 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,594 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,594 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,594 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,596 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:38,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (111)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,606 INFO L229 MonitoredProcess]: Starting monitored process 112 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Waiting until timeout for monitored process [2024-11-27 20:15:38,609 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 [2024-11-27 20:15:38,624 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,624 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,624 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,624 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,624 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,625 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,627 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:38,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (112)] Ended with exit code 0 [2024-11-27 20:15:38,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,636 INFO L229 MonitoredProcess]: Starting monitored process 113 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Waiting until timeout for monitored process [2024-11-27 20:15:38,640 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 [2024-11-27 20:15:38,654 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,654 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,654 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,654 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,654 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,655 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,655 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,656 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:38,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (113)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,667 INFO L229 MonitoredProcess]: Starting monitored process 114 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Waiting until timeout for monitored process [2024-11-27 20:15:38,670 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 [2024-11-27 20:15:38,685 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,685 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,685 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,685 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,685 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,686 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,686 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,687 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:38,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (114)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,697 INFO L229 MonitoredProcess]: Starting monitored process 115 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Waiting until timeout for monitored process [2024-11-27 20:15:38,700 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-11-27 20:15:38,714 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,714 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,715 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,715 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,715 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,716 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,716 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,717 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:38,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (115)] Ended with exit code 0 [2024-11-27 20:15:38,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,724 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,726 INFO L229 MonitoredProcess]: Starting monitored process 116 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Waiting until timeout for monitored process [2024-11-27 20:15:38,729 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 [2024-11-27 20:15:38,744 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:38,744 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:38,744 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:38,744 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:38,744 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:38,745 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:38,745 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:38,748 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:38,751 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-11-27 20:15:38,751 INFO L444 ModelExtractionUtils]: 2 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-11-27 20:15:38,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:38,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:38,754 INFO L229 MonitoredProcess]: Starting monitored process 117 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:38,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Waiting until timeout for monitored process [2024-11-27 20:15:38,756 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:38,757 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:38,757 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:38,757 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_~n) = 1*fibo2_~n Supporting invariants [] [2024-11-27 20:15:38,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (116)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:38,766 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:38,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:38,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-27 20:15:38,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:38,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:38,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:38,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:39,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:39,050 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 [2024-11-27 20:15:39,050 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) [2024-11-27 20:15:39,211 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. [2024-11-27 20:15:39,212 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 [2024-11-27 20:15:39,213 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) [2024-11-27 20:15:39,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2024-11-27 20:15:39,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 40 letters. Loop has 8 letters. [2024-11-27 20:15:39,213 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:39,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 48 letters. Loop has 8 letters. [2024-11-27 20:15:39,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:39,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 40 letters. Loop has 16 letters. [2024-11-27 20:15:39,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:39,215 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 238 states and 262 transitions. [2024-11-27 20:15:39,218 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 28 [2024-11-27 20:15:39,221 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 238 states to 158 states and 173 transitions. [2024-11-27 20:15:39,221 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-11-27 20:15:39,221 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 117 [2024-11-27 20:15:39,222 INFO L73 IsDeterministic]: Start isDeterministic. Operand 158 states and 173 transitions. [2024-11-27 20:15:39,222 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:39,222 INFO L218 hiAutomatonCegarLoop]: Abstraction has 158 states and 173 transitions. [2024-11-27 20:15:39,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states and 173 transitions. [2024-11-27 20:15:39,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-11-27 20:15:39,227 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) [2024-11-27 20:15:39,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 173 transitions. [2024-11-27 20:15:39,228 INFO L240 hiAutomatonCegarLoop]: Abstraction has 158 states and 173 transitions. [2024-11-27 20:15:39,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 20:15:39,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-27 20:15:39,229 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2024-11-27 20:15:39,229 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) [2024-11-27 20:15:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:15:39,467 INFO L93 Difference]: Finished difference Result 144 states and 153 transitions. [2024-11-27 20:15:39,468 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 144 states and 153 transitions. [2024-11-27 20:15:39,469 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-27 20:15:39,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 144 states to 102 states and 104 transitions. [2024-11-27 20:15:39,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 93 [2024-11-27 20:15:39,473 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 102 [2024-11-27 20:15:39,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 102 states and 104 transitions. [2024-11-27 20:15:39,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-11-27 20:15:39,474 INFO L218 hiAutomatonCegarLoop]: Abstraction has 102 states and 104 transitions. [2024-11-27 20:15:39,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states and 104 transitions. [2024-11-27 20:15:39,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 98. [2024-11-27 20:15:39,477 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) [2024-11-27 20:15:39,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 100 transitions. [2024-11-27 20:15:39,478 INFO L240 hiAutomatonCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-11-27 20:15:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-27 20:15:39,479 INFO L425 stractBuchiCegarLoop]: Abstraction has 98 states and 100 transitions. [2024-11-27 20:15:39,479 INFO L332 stractBuchiCegarLoop]: ======== Iteration 11 ============ [2024-11-27 20:15:39,479 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 98 states and 100 transitions. [2024-11-27 20:15:39,480 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2024-11-27 20:15:39,481 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 20:15:39,481 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 20:15:39,482 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] [2024-11-27 20:15:39,482 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:15:39,483 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(18, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret8#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 5;" "call main_#t~ret8#1 := fibo1(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret6 := fibo1(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#48#return;" "call #t~ret7 := fibo1(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#54#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#50#return;" "#res := #t~ret6 + #t~ret7;havoc #t~ret6;havoc #t~ret7;" "assume true;" >"#52#return;" "call #t~ret5 := fibo2(~n - 2);"< [2024-11-27 20:15:39,483 INFO L749 eck$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);"< [2024-11-27 20:15:39,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:39,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1182981662, now seen corresponding path program 1 times [2024-11-27 20:15:39,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:39,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120463587] [2024-11-27 20:15:39,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:39,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,513 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:39,538 INFO L85 PathProgramCache]: Analyzing trace with hash 996300776, now seen corresponding path program 5 times [2024-11-27 20:15:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:39,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146447256] [2024-11-27 20:15:39,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:39,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:39,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (117)] Ended with exit code 0 [2024-11-27 20:15:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,544 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,547 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:39,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash 65521925, now seen corresponding path program 2 times [2024-11-27 20:15:39,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 20:15:39,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836383122] [2024-11-27 20:15:39,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:15:39,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:15:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,563 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 20:15:39,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 20:15:39,578 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 20:15:39,719 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:39,719 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:39,720 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:39,720 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:39,720 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-11-27 20:15:39,720 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,720 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:39,720 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:39,720 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration11_Loop [2024-11-27 20:15:39,720 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:39,720 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:39,721 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,724 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,727 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,730 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,739 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,743 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,745 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,748 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:39,802 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:39,803 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-11-27 20:15:39,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:39,806 INFO L229 MonitoredProcess]: Starting monitored process 118 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:39,810 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:39,810 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:39,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Waiting until timeout for monitored process [2024-11-27 20:15:39,831 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:39,831 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:39,842 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (118)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:39,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:39,845 INFO L229 MonitoredProcess]: Starting monitored process 119 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:39,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Waiting until timeout for monitored process [2024-11-27 20:15:39,850 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:39,851 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:39,871 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:39,871 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret4=0} Honda state: {fibo1_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:39,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (119)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:39,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:39,887 INFO L229 MonitoredProcess]: Starting monitored process 120 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:39,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Waiting until timeout for monitored process [2024-11-27 20:15:39,892 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:39,892 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:39,912 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-11-27 20:15:39,913 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret6=0} Honda state: {fibo2_#t~ret6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-11-27 20:15:39,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (120)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:39,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:39,928 INFO L229 MonitoredProcess]: Starting monitored process 121 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:39,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Waiting until timeout for monitored process [2024-11-27 20:15:39,933 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-11-27 20:15:39,933 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:39,964 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (121)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:39,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:39,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:39,968 INFO L229 MonitoredProcess]: Starting monitored process 122 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:39,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Waiting until timeout for monitored process [2024-11-27 20:15:39,973 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-11-27 20:15:39,973 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-11-27 20:15:40,057 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-11-27 20:15:40,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (122)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:40,062 INFO L204 LassoAnalysis]: Preferences: [2024-11-27 20:15:40,063 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-11-27 20:15:40,063 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-11-27 20:15:40,063 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-11-27 20:15:40,063 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-11-27 20:15:40,063 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,063 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-11-27 20:15:40,063 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-11-27 20:15:40,063 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_5-1.c_Iteration11_Loop [2024-11-27 20:15:40,063 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-11-27 20:15:40,063 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-11-27 20:15:40,064 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,069 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,074 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,078 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,087 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,089 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,092 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,095 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-11-27 20:15:40,148 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-11-27 20:15:40,148 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-11-27 20:15:40,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,151 INFO L229 MonitoredProcess]: Starting monitored process 123 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Waiting until timeout for monitored process [2024-11-27 20:15:40,156 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 [2024-11-27 20:15:40,174 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:40,174 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:40,175 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:40,175 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:40,175 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:40,175 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:40,175 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:40,177 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:40,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (123)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:40,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,192 INFO L229 MonitoredProcess]: Starting monitored process 124 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Waiting until timeout for monitored process [2024-11-27 20:15:40,197 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 [2024-11-27 20:15:40,214 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:40,214 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:40,214 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:40,215 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:40,215 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:40,215 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:40,215 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:40,217 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:40,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (124)] Ended with exit code 0 [2024-11-27 20:15:40,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,231 INFO L229 MonitoredProcess]: Starting monitored process 125 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Waiting until timeout for monitored process [2024-11-27 20:15:40,236 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 [2024-11-27 20:15:40,254 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:40,254 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:40,254 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:40,254 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:40,254 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:40,254 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:40,255 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:40,256 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-11-27 20:15:40,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (125)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:40,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,270 INFO L229 MonitoredProcess]: Starting monitored process 126 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Waiting until timeout for monitored process [2024-11-27 20:15:40,275 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 [2024-11-27 20:15:40,293 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-11-27 20:15:40,294 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-11-27 20:15:40,294 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-11-27 20:15:40,294 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-11-27 20:15:40,294 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-11-27 20:15:40,295 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-11-27 20:15:40,295 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-11-27 20:15:40,300 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-11-27 20:15:40,306 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-11-27 20:15:40,306 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-11-27 20:15:40,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 20:15:40,306 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:15:40,309 INFO L229 MonitoredProcess]: Starting monitored process 127 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 20:15:40,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Waiting until timeout for monitored process [2024-11-27 20:15:40,314 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-11-27 20:15:40,314 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-11-27 20:15:40,314 INFO L474 LassoAnalysis]: Proved termination. [2024-11-27 20:15:40,314 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo2_#in~n) = 1*fibo2_#in~n Supporting invariants [] [2024-11-27 20:15:40,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (126)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:40,326 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-11-27 20:15:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:40,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:15:40,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:41,002 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:41,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:41,065 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 [2024-11-27 20:15:41,066 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) [2024-11-27 20:15:41,138 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. [2024-11-27 20:15:41,138 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 [2024-11-27 20:15:41,139 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) [2024-11-27 20:15:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-27 20:15:41,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-27 20:15:41,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:41,140 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:41,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:41,235 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:15:41,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:41,546 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (127)] Ended with exit code 0 [2024-11-27 20:15:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:41,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:41,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:41,913 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 [2024-11-27 20:15:41,913 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) [2024-11-27 20:15:41,993 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. [2024-11-27 20:15:41,994 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 [2024-11-27 20:15:41,994 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) [2024-11-27 20:15:41,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2024-11-27 20:15:41,995 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 25 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-27 20:15:41,995 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:41,995 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-11-27 20:15:42,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:15:42,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:42,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-27 20:15:42,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:15:42,626 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-27 20:15:42,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:15:42,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:15:42,682 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 [2024-11-27 20:15:42,683 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) [2024-11-27 20:15:42,824 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. [2024-11-27 20:15:42,824 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 [2024-11-27 20:15:42,825 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) [2024-11-27 20:15:42,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 37 transitions. [2024-11-27 20:15:42,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 63 letters. Loop has 8 letters. [2024-11-27 20:15:42,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:42,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 71 letters. Loop has 8 letters. [2024-11-27 20:15:42,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:42,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 37 transitions. Stem has 63 letters. Loop has 16 letters. [2024-11-27 20:15:42,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-11-27 20:15:42,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 124 states and 128 transitions. [2024-11-27 20:15:42,828 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:15:42,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 124 states to 0 states and 0 transitions. [2024-11-27 20:15:42,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-11-27 20:15:42,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-11-27 20:15:42,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-11-27 20:15:42,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 20:15:42,828 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:15:42,829 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:15:42,829 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:15:42,829 INFO L332 stractBuchiCegarLoop]: ======== Iteration 12 ============ [2024-11-27 20:15:42,829 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:15:42,829 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-11-27 20:15:42,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-11-27 20:15:42,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 08:15:42 BoogieIcfgContainer [2024-11-27 20:15:42,838 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 20:15:42,839 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:15:42,839 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:15:42,839 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:15:42,840 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:15:10" (3/4) ... [2024-11-27 20:15:42,843 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 20:15:42,843 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:15:42,845 INFO L158 Benchmark]: Toolchain (without parser) took 32945.41ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 118.6MB in the beginning and 104.2MB in the end (delta: 14.4MB). Peak memory consumption was 137.2MB. Max. memory is 16.1GB. [2024-11-27 20:15:42,847 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:42,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.87ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 20:15:42,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.90ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.0MB in the end (delta: 935.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:42,848 INFO L158 Benchmark]: Boogie Preprocessor took 39.88ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:42,849 INFO L158 Benchmark]: RCFGBuilder took 334.53ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 95.4MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 20:15:42,850 INFO L158 Benchmark]: BuchiAutomizer took 32196.61ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 95.4MB in the beginning and 104.3MB in the end (delta: -8.9MB). Peak memory consumption was 112.0MB. Max. memory is 16.1GB. [2024-11-27 20:15:42,851 INFO L158 Benchmark]: Witness Printer took 4.58ms. Allocated memory is still 268.4MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:15:42,852 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 79.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.87ms. Allocated memory is still 142.6MB. Free memory was 118.6MB in the beginning and 107.9MB in the end (delta: 10.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.90ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.0MB in the end (delta: 935.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.88ms. Allocated memory is still 142.6MB. Free memory was 107.0MB in the beginning and 105.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 334.53ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 95.4MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 32196.61ms. Allocated memory was 142.6MB in the beginning and 268.4MB in the end (delta: 125.8MB). Free memory was 95.4MB in the beginning and 104.3MB in the end (delta: -8.9MB). Peak memory consumption was 112.0MB. Max. memory is 16.1GB. * Witness Printer took 4.58ms. Allocated memory is still 268.4MB. Free memory was 104.3MB in the beginning and 104.2MB in the end (delta: 54.0kB). 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 32.1s and 12 iterations. TraceHistogramMax:10. Analysis of lassos took 16.6s. Construction of modules took 3.2s. Büchi inclusion checks took 11.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 16. Automata minimization 0.4s 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, 3257 IncrementalHoareTripleChecker+Invalid, 3833 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 576 mSolverCounterUnsat, 522 mSDtfsCounter, 3257 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: 38ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 42 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 8 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.8s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-11-27 20:15:42,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:43,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:43,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:43,478 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2024-11-27 20:15:43,679 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Ended with exit code 0 [2024-11-27 20:15:43,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2024-11-27 20:15:44,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Ended with exit code 0 [2024-11-27 20:15:44,279 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-27 20:15:44,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:44,679 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:44,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:45,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-27 20:15:45,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a2b6c-dd1e-419c-9343-fa6c5e7cf787/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