./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/recursive-simple/fibo_7-1.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_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/fibo_7-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 06:20:25,052 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 06:20:25,105 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 06:20:25,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 06:20:25,109 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 06:20:25,129 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 06:20:25,130 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 06:20:25,130 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 06:20:25,131 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 06:20:25,131 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 06:20:25,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 06:20:25,131 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 06:20:25,131 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 06:20:25,131 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 06:20:25,131 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 06:20:25,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 06:20:25,132 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 06:20:25,133 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 06:20:25,133 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 06:20:25,134 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 06:20:25,134 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 06:20:25,134 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 06:20:25,134 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 06:20:25,134 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_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17c70baee0bc6a4a26b6403fb6f46125ad9d7f8a7127109634f2327c61aaf5cb [2024-12-02 06:20:25,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 06:20:25,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 06:20:25,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 06:20:25,349 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 06:20:25,349 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 06:20:25,350 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-12-02 06:20:27,944 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/data/85f9f8e13/22cca3b7a0334d13872b97b76513429f/FLAGce649d536 [2024-12-02 06:20:28,155 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 06:20:28,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/sv-benchmarks/c/recursive-simple/fibo_7-1.c [2024-12-02 06:20:28,162 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/data/85f9f8e13/22cca3b7a0334d13872b97b76513429f/FLAGce649d536 [2024-12-02 06:20:28,518 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/data/85f9f8e13/22cca3b7a0334d13872b97b76513429f [2024-12-02 06:20:28,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 06:20:28,521 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 06:20:28,522 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 06:20:28,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 06:20:28,525 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 06:20:28,526 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@158c8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28, skipping insertion in model container [2024-12-02 06:20:28,527 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,536 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 06:20:28,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:20:28,645 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 06:20:28,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 06:20:28,669 INFO L204 MainTranslator]: Completed translation [2024-12-02 06:20:28,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28 WrapperNode [2024-12-02 06:20:28,670 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 06:20:28,670 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 06:20:28,670 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 06:20:28,671 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 06:20:28,677 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,682 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,696 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 20 [2024-12-02 06:20:28,696 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 06:20:28,697 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 06:20:28,697 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 06:20:28,697 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 06:20:28,705 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,706 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,712 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 06:20:28,712 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,713 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,714 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,715 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,717 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,718 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 06:20:28,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 06:20:28,720 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 06:20:28,720 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 06:20:28,721 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (1/1) ... [2024-12-02 06:20:28,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:28,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:28,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:28,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 06:20:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 06:20:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 06:20:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 06:20:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 06:20:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2024-12-02 06:20:28,777 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2024-12-02 06:20:28,823 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 06:20:28,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 06:20:28,902 INFO L? ?]: Removed 6 outVars from TransFormulas that were not future-live. [2024-12-02 06:20:28,902 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 06:20:28,910 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 06:20:28,910 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 06:20:28,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:20:28 BoogieIcfgContainer [2024-12-02 06:20:28,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 06:20:28,911 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 06:20:28,911 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 06:20:28,915 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 06:20:28,916 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:20:28,916 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 06:20:28" (1/3) ... [2024-12-02 06:20:28,917 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ddf994d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:20:28, skipping insertion in model container [2024-12-02 06:20:28,917 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:20:28,917 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 06:20:28" (2/3) ... [2024-12-02 06:20:28,918 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3ddf994d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 06:20:28, skipping insertion in model container [2024-12-02 06:20:28,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 06:20:28,918 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:20:28" (3/3) ... [2024-12-02 06:20:28,919 INFO L363 chiAutomizerObserver]: Analyzing ICFG fibo_7-1.c [2024-12-02 06:20:28,959 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 06:20:28,959 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 06:20:28,959 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 06:20:28,960 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 06:20:28,960 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 06:20:28,960 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 06:20:28,960 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 06:20:28,960 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 06:20:28,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:20:28,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:28,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:28,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:28,982 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 06:20:28,982 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 06:20:28,982 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 06:20:28,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 06:20:28,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:28,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:28,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:28,985 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2024-12-02 06:20:28,985 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 06:20:28,990 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< [2024-12-02 06:20:28,990 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< [2024-12-02 06:20:28,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:28,994 INFO L85 PathProgramCache]: Analyzing trace with hash 29885, now seen corresponding path program 1 times [2024-12-02 06:20:29,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:29,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481247647] [2024-12-02 06:20:29,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:29,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:29,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,063 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,083 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:29,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:29,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 1 times [2024-12-02 06:20:29,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:29,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28317097] [2024-12-02 06:20:29,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:29,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,091 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,096 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:29,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1830210312, now seen corresponding path program 1 times [2024-12-02 06:20:29,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727575237] [2024-12-02 06:20:29,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:29,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,108 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:29,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:29,118 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:29,238 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:29,238 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:29,239 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:29,239 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:29,239 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 06:20:29,239 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,239 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:29,239 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:29,239 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2024-12-02 06:20:29,240 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:29,240 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:29,250 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,256 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,260 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,263 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,273 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,341 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:29,341 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 06:20:29,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-12-02 06:20:29,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:29,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:29,363 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:29,363 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:29,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-12-02 06:20:29,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,374 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-12-02 06:20:29,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:29,376 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:29,388 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:29,389 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#res=0} Honda state: {fibo_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:29,394 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-12-02 06:20:29,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,396 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-12-02 06:20:29,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:29,398 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:29,410 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:29,410 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:29,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-12-02 06:20:29,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,420 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-12-02 06:20:29,423 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:29,423 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:29,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Ended with exit code 0 [2024-12-02 06:20:29,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,442 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-12-02 06:20:29,445 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 06:20:29,445 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:29,508 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 06:20:29,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-12-02 06:20:29,511 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:29,511 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:29,511 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:29,511 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:29,511 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 06:20:29,511 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,511 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:29,511 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:29,511 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration1_Loop [2024-12-02 06:20:29,511 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:29,511 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:29,513 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,515 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,518 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,520 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,528 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:29,579 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:29,582 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 06:20:29,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-12-02 06:20:29,586 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:29,598 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:29,598 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:29,599 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:29,599 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:29,599 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:29,603 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:29,603 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:29,605 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:29,610 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-12-02 06:20:29,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,612 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-12-02 06:20:29,614 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:29,625 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:29,625 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:29,625 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:29,625 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:29,625 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:29,626 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:29,626 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:29,628 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:29,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-12-02 06:20:29,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,635 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-12-02 06:20:29,638 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:29,649 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:29,649 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:29,649 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:29,649 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:29,649 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:29,650 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:29,650 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:29,651 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:29,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Ended with exit code 0 [2024-12-02 06:20:29,657 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,658 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-12-02 06:20:29,661 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:29,672 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:29,672 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:29,672 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:29,672 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:29,672 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:29,673 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:29,673 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:29,676 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 06:20:29,679 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 06:20:29,682 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 06:20:29,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:29,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:29,685 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:29,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-12-02 06:20:29,688 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 06:20:29,688 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 06:20:29,688 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 06:20:29,688 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2024-12-02 06:20:29,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Ended with exit code 0 [2024-12-02 06:20:29,698 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 06:20:29,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:29,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:29,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 06:20:29,746 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:29,764 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Ended with exit code 0 [2024-12-02 06:20:29,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:29,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:29,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:29,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:29,846 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2024-12-02 06:20:29,848 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:20:29,930 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3). Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Result 41 states and 54 transitions. Complement of second has 16 states. [2024-12-02 06:20:29,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:29,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 06:20:29,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 10 transitions. [2024-12-02 06:20:29,943 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 4 letters. [2024-12-02 06:20:29,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:29,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2024-12-02 06:20:29,944 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:29,944 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 10 transitions. Stem has 3 letters. Loop has 8 letters. [2024-12-02 06:20:29,945 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:29,945 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 41 states and 54 transitions. [2024-12-02 06:20:29,948 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:29,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 41 states to 23 states and 31 transitions. [2024-12-02 06:20:29,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2024-12-02 06:20:29,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2024-12-02 06:20:29,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 23 states and 31 transitions. [2024-12-02 06:20:29,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:29,956 INFO L218 hiAutomatonCegarLoop]: Abstraction has 23 states and 31 transitions. [2024-12-02 06:20:29,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states and 31 transitions. [2024-12-02 06:20:29,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 20. [2024-12-02 06:20:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 4 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:29,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2024-12-02 06:20:29,981 INFO L240 hiAutomatonCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-12-02 06:20:29,981 INFO L425 stractBuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2024-12-02 06:20:29,981 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 06:20:29,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 20 states and 26 transitions. [2024-12-02 06:20:29,982 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:29,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:29,982 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:29,983 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:29,983 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:29,984 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#35#return;" [2024-12-02 06:20:29,984 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#35#return;" [2024-12-02 06:20:29,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 523436175, now seen corresponding path program 1 times [2024-12-02 06:20:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467504148] [2024-12-02 06:20:29,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:29,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,070 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-12-02 06:20:30,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467504148] [2024-12-02 06:20:30,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467504148] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:30,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477872964] [2024-12-02 06:20:30,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:30,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,108 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 06:20:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:30,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:30,192 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:30,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477872964] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:30,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:30,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6, 6] total 12 [2024-12-02 06:20:30,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834528169] [2024-12-02 06:20:30,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:30,277 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 06:20:30,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:30,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1950983701, now seen corresponding path program 1 times [2024-12-02 06:20:30,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:30,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435743513] [2024-12-02 06:20:30,277 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:30,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,326 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-12-02 06:20:30,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:30,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435743513] [2024-12-02 06:20:30,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435743513] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:30,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899377240] [2024-12-02 06:20:30,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:30,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,358 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 06:20:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,381 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 06:20:30,382 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:30,410 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:30,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899377240] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:30,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:30,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-12-02 06:20:30,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803831413] [2024-12-02 06:20:30,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:30,471 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 06:20:30,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:20:30,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 06:20:30,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 06:20:30,474 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. cyclomatic complexity: 8 Second operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:30,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:30,533 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2024-12-02 06:20:30,533 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 26 states and 32 transitions. [2024-12-02 06:20:30,534 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:30,535 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 26 states to 24 states and 30 transitions. [2024-12-02 06:20:30,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 20 [2024-12-02 06:20:30,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 20 [2024-12-02 06:20:30,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 30 transitions. [2024-12-02 06:20:30,535 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:30,535 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-12-02 06:20:30,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 30 transitions. [2024-12-02 06:20:30,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-12-02 06:20:30,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 16 states have (on average 1.1875) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 4 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-12-02 06:20:30,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2024-12-02 06:20:30,539 INFO L240 hiAutomatonCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-12-02 06:20:30,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 06:20:30,540 INFO L425 stractBuchiCegarLoop]: Abstraction has 24 states and 30 transitions. [2024-12-02 06:20:30,540 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 06:20:30,540 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 30 transitions. [2024-12-02 06:20:30,541 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-12-02 06:20:30,541 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:30,541 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:30,541 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:30,541 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:30,542 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" [2024-12-02 06:20:30,542 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" [2024-12-02 06:20:30,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:30,542 INFO L85 PathProgramCache]: Analyzing trace with hash -953322862, now seen corresponding path program 1 times [2024-12-02 06:20:30,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:30,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097301812] [2024-12-02 06:20:30,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,592 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-12-02 06:20:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:30,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097301812] [2024-12-02 06:20:30,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097301812] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:30,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381382201] [2024-12-02 06:20:30,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:30,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,633 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-12-02 06:20:30,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:30,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:30,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:30,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:30,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381382201] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:30,772 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:30,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-12-02 06:20:30,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907579776] [2024-12-02 06:20:30,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:30,773 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 06:20:30,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:30,773 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 1 times [2024-12-02 06:20:30,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:30,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441587338] [2024-12-02 06:20:30,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:30,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:30,779 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:30,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:30,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:30,889 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:30,889 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:30,889 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:30,889 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:30,889 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 06:20:30,889 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:30,889 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:30,889 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:30,889 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2024-12-02 06:20:30,890 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:30,890 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:30,890 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:30,892 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:30,896 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:30,898 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:30,900 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:30,933 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:30,933 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 06:20:30,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:30,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,935 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-12-02 06:20:30,937 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:30,937 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:30,949 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:30,949 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:30,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-12-02 06:20:30,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:30,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,957 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-12-02 06:20:30,959 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:30,959 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:30,979 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Ended with exit code 0 [2024-12-02 06:20:30,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:30,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:30,981 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:30,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-12-02 06:20:30,984 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 06:20:30,984 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:31,000 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 06:20:31,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Ended with exit code 0 [2024-12-02 06:20:31,005 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:31,005 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:31,006 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:31,006 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:31,006 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 06:20:31,006 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:31,006 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:31,006 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:31,006 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration3_Loop [2024-12-02 06:20:31,006 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:31,006 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:31,007 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:31,009 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:31,014 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:31,017 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:31,019 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:31,053 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:31,053 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 06:20:31,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:31,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:31,055 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:31,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-12-02 06:20:31,058 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:31,069 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:31,069 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:31,069 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:31,069 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:31,069 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:31,070 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:31,070 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:31,072 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:31,077 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-12-02 06:20:31,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:31,079 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:31,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-12-02 06:20:31,081 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:31,092 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:31,092 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:31,092 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:31,092 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:31,092 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:31,093 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:31,093 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:31,095 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 06:20:31,096 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-12-02 06:20:31,096 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-12-02 06:20:31,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:31,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:31,098 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:31,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-12-02 06:20:31,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 06:20:31,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 06:20:31,100 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 06:20:31,100 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2024-12-02 06:20:31,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-12-02 06:20:31,106 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 06:20:31,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,136 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 06:20:31,137 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,220 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:20:31,221 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:31,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:31,304 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-12-02 06:20:31,304 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:20:31,500 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 30 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Result 128 states and 178 transitions. Complement of second has 40 states. [2024-12-02 06:20:31,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:31,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.2857142857142856) internal successors, (16), 5 states have internal predecessors, (16), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:20:31,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-12-02 06:20:31,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 10 letters. [2024-12-02 06:20:31,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:31,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 22 letters. Loop has 10 letters. [2024-12-02 06:20:31,502 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:31,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 12 letters. Loop has 20 letters. [2024-12-02 06:20:31,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:31,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 128 states and 178 transitions. [2024-12-02 06:20:31,506 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 06:20:31,510 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 128 states to 105 states and 151 transitions. [2024-12-02 06:20:31,510 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 62 [2024-12-02 06:20:31,510 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2024-12-02 06:20:31,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 151 transitions. [2024-12-02 06:20:31,511 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:31,511 INFO L218 hiAutomatonCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-12-02 06:20:31,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 151 transitions. [2024-12-02 06:20:31,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 94. [2024-12-02 06:20:31,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 64 states have internal predecessors, (71), 21 states have call successors, (22), 11 states have call predecessors, (22), 15 states have return successors, (35), 18 states have call predecessors, (35), 19 states have call successors, (35) [2024-12-02 06:20:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 128 transitions. [2024-12-02 06:20:31,519 INFO L240 hiAutomatonCegarLoop]: Abstraction has 94 states and 128 transitions. [2024-12-02 06:20:31,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:20:31,519 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 06:20:31,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-12-02 06:20:31,520 INFO L87 Difference]: Start difference. First operand 94 states and 128 transitions. Second operand has 12 states, 9 states have (on average 2.111111111111111) internal successors, (19), 9 states have internal predecessors, (19), 4 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-12-02 06:20:31,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:31,617 INFO L93 Difference]: Finished difference Result 119 states and 163 transitions. [2024-12-02 06:20:31,617 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 119 states and 163 transitions. [2024-12-02 06:20:31,620 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 06:20:31,623 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 119 states to 114 states and 158 transitions. [2024-12-02 06:20:31,623 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 73 [2024-12-02 06:20:31,624 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 73 [2024-12-02 06:20:31,624 INFO L73 IsDeterministic]: Start isDeterministic. Operand 114 states and 158 transitions. [2024-12-02 06:20:31,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:31,624 INFO L218 hiAutomatonCegarLoop]: Abstraction has 114 states and 158 transitions. [2024-12-02 06:20:31,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states and 158 transitions. [2024-12-02 06:20:31,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2024-12-02 06:20:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 66 states have (on average 1.196969696969697) internal successors, (79), 72 states have internal predecessors, (79), 24 states have call successors, (25), 13 states have call predecessors, (25), 16 states have return successors, (39), 20 states have call predecessors, (39), 22 states have call successors, (39) [2024-12-02 06:20:31,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 143 transitions. [2024-12-02 06:20:31,634 INFO L240 hiAutomatonCegarLoop]: Abstraction has 106 states and 143 transitions. [2024-12-02 06:20:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 06:20:31,636 INFO L425 stractBuchiCegarLoop]: Abstraction has 106 states and 143 transitions. [2024-12-02 06:20:31,636 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 06:20:31,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 106 states and 143 transitions. [2024-12-02 06:20:31,638 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-12-02 06:20:31,638 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:31,638 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:31,638 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [6, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:31,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:31,639 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume ~n < 1;#res := 0;" "assume true;" >"#37#return;" "#res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5;" "assume true;" >"#35#return;" [2024-12-02 06:20:31,639 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" [2024-12-02 06:20:31,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:31,639 INFO L85 PathProgramCache]: Analyzing trace with hash 870102534, now seen corresponding path program 1 times [2024-12-02 06:20:31,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:31,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645541966] [2024-12-02 06:20:31,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:31,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:31,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,755 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-12-02 06:20:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,811 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-12-02 06:20:31,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,835 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-12-02 06:20:31,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:31,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645541966] [2024-12-02 06:20:31,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645541966] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:31,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957020386] [2024-12-02 06:20:31,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:31,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:31,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:31,846 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:31,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-12-02 06:20:31,862 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Ended with exit code 0 [2024-12-02 06:20:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:31,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 06:20:31,895 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:31,952 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:32,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957020386] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:32,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:32,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 12] total 18 [2024-12-02 06:20:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907213123] [2024-12-02 06:20:32,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:32,179 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 06:20:32,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:32,179 INFO L85 PathProgramCache]: Analyzing trace with hash 350977484, now seen corresponding path program 2 times [2024-12-02 06:20:32,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:32,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082498323] [2024-12-02 06:20:32,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:32,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:32,184 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:32,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:32,276 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:32,276 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:32,276 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:32,276 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:32,276 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 06:20:32,276 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,276 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:32,276 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:32,276 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2024-12-02 06:20:32,276 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:32,276 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:32,277 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,279 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,282 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,285 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,290 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,321 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:32,321 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 06:20:32,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,324 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-12-02 06:20:32,327 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:32,327 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:32,343 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:32,343 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=1} Honda state: {fibo_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:32,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Ended with exit code 0 [2024-12-02 06:20:32,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,353 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Waiting until timeout for monitored process [2024-12-02 06:20:32,355 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:32,355 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:32,367 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:32,368 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#in~n=2} Honda state: {fibo_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:32,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (23)] Ended with exit code 0 [2024-12-02 06:20:32,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,377 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-12-02 06:20:32,379 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:32,380 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:32,391 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:32,392 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:32,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Ended with exit code 0 [2024-12-02 06:20:32,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,399 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-12-02 06:20:32,401 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:32,401 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:32,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Ended with exit code 0 [2024-12-02 06:20:32,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,420 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-12-02 06:20:32,422 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 06:20:32,422 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:32,435 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 06:20:32,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-12-02 06:20:32,440 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:32,441 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:32,441 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:32,441 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:32,441 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 06:20:32,441 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,441 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:32,441 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:32,441 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration4_Loop [2024-12-02 06:20:32,441 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:32,441 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:32,442 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,444 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,445 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,447 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,449 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:32,480 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:32,480 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 06:20:32,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,481 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,482 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-12-02 06:20:32,484 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:32,495 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:32,495 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:32,495 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:32,495 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:32,495 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:32,496 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:32,496 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:32,498 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:32,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Ended with exit code 0 [2024-12-02 06:20:32,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,505 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-12-02 06:20:32,507 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 [2024-12-02 06:20:32,518 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:32,518 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:32,518 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:32,518 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:32,518 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:32,519 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:32,519 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:32,521 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:32,526 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Ended with exit code 0 [2024-12-02 06:20:32,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,527 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-12-02 06:20:32,530 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:32,542 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:32,542 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:32,542 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:32,542 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:32,542 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:32,542 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:32,542 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:32,543 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:32,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-12-02 06:20:32,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,550 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-12-02 06:20:32,552 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:32,563 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:32,563 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:32,563 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:32,563 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:32,563 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:32,564 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:32,564 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:32,565 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:32,571 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Ended with exit code 0 [2024-12-02 06:20:32,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,572 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-12-02 06:20:32,575 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:32,585 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:32,585 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:32,585 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:32,586 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:32,586 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:32,586 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:32,586 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:32,588 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 06:20:32,591 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 06:20:32,591 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 06:20:32,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:32,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:32,593 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:32,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-12-02 06:20:32,594 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 06:20:32,594 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 06:20:32,594 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 06:20:32,594 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2024-12-02 06:20:32,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Ended with exit code 0 [2024-12-02 06:20:32,600 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 06:20:32,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:32,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:32,646 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:20:32,648 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:32,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:32,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:20:32,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:32,874 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-12-02 06:20:32,926 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:32,926 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-12-02 06:20:32,926 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:33,085 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 190 states and 265 transitions. Complement of second has 37 states. [2024-12-02 06:20:33,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:33,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:33,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 40 transitions. [2024-12-02 06:20:33,087 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 40 transitions. Stem has 32 letters. Loop has 10 letters. [2024-12-02 06:20:33,087 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:33,087 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 06:20:33,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:33,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:20:33,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:33,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:20:33,311 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:33,379 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 6 loop predicates [2024-12-02 06:20:33,379 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:33,526 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 296 states and 402 transitions. Complement of second has 29 states. [2024-12-02 06:20:33,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 8 states 2 stem states 5 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:33,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:33,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 24 transitions. [2024-12-02 06:20:33,528 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states and 24 transitions. Stem has 32 letters. Loop has 10 letters. [2024-12-02 06:20:33,528 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:33,528 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 06:20:33,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:33,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:20:33,574 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:33,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:33,758 INFO L256 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 06:20:33,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:33,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:33,829 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 6 loop predicates [2024-12-02 06:20:33,829 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42 Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:34,021 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 106 states and 143 transitions. cyclomatic complexity: 42. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Result 817 states and 1129 transitions. Complement of second has 135 states. [2024-12-02 06:20:34,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 10 states 2 stem states 7 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:34,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 5 states have internal predecessors, (19), 4 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-12-02 06:20:34,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 45 transitions. [2024-12-02 06:20:34,023 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 10 letters. [2024-12-02 06:20:34,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:34,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 42 letters. Loop has 10 letters. [2024-12-02 06:20:34,024 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:34,024 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 45 transitions. Stem has 32 letters. Loop has 20 letters. [2024-12-02 06:20:34,025 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:34,025 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 817 states and 1129 transitions. [2024-12-02 06:20:34,038 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 44 [2024-12-02 06:20:34,048 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 817 states to 418 states and 629 transitions. [2024-12-02 06:20:34,049 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 162 [2024-12-02 06:20:34,049 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 182 [2024-12-02 06:20:34,049 INFO L73 IsDeterministic]: Start isDeterministic. Operand 418 states and 629 transitions. [2024-12-02 06:20:34,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:34,050 INFO L218 hiAutomatonCegarLoop]: Abstraction has 418 states and 629 transitions. [2024-12-02 06:20:34,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states and 629 transitions. [2024-12-02 06:20:34,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 356. [2024-12-02 06:20:34,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 223 states have (on average 1.1973094170403586) internal successors, (267), 239 states have internal predecessors, (267), 75 states have call successors, (84), 46 states have call predecessors, (84), 58 states have return successors, (142), 70 states have call predecessors, (142), 71 states have call successors, (142) [2024-12-02 06:20:34,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 493 transitions. [2024-12-02 06:20:34,080 INFO L240 hiAutomatonCegarLoop]: Abstraction has 356 states and 493 transitions. [2024-12-02 06:20:34,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:20:34,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-12-02 06:20:34,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2024-12-02 06:20:34,081 INFO L87 Difference]: Start difference. First operand 356 states and 493 transitions. Second operand has 19 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 13 states have internal predecessors, (35), 11 states have call successors, (12), 5 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2024-12-02 06:20:34,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:34,371 INFO L93 Difference]: Finished difference Result 579 states and 897 transitions. [2024-12-02 06:20:34,371 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 579 states and 897 transitions. [2024-12-02 06:20:34,380 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:34,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 579 states to 569 states and 881 transitions. [2024-12-02 06:20:34,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2024-12-02 06:20:34,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2024-12-02 06:20:34,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 569 states and 881 transitions. [2024-12-02 06:20:34,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:34,391 INFO L218 hiAutomatonCegarLoop]: Abstraction has 569 states and 881 transitions. [2024-12-02 06:20:34,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 569 states and 881 transitions. [2024-12-02 06:20:34,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 569 to 527. [2024-12-02 06:20:34,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 321 states have (on average 1.1869158878504673) internal successors, (381), 344 states have internal predecessors, (381), 121 states have call successors, (135), 62 states have call predecessors, (135), 85 states have return successors, (297), 120 states have call predecessors, (297), 115 states have call successors, (297) [2024-12-02 06:20:34,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 813 transitions. [2024-12-02 06:20:34,419 INFO L240 hiAutomatonCegarLoop]: Abstraction has 527 states and 813 transitions. [2024-12-02 06:20:34,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:20:34,420 INFO L425 stractBuchiCegarLoop]: Abstraction has 527 states and 813 transitions. [2024-12-02 06:20:34,420 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 06:20:34,420 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 527 states and 813 transitions. [2024-12-02 06:20:34,425 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:34,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:34,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:34,426 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [8, 8, 7, 7, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:34,426 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 06:20:34,426 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< [2024-12-02 06:20:34,426 INFO L749 eck$LassoCheckResult]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< [2024-12-02 06:20:34,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:34,426 INFO L85 PathProgramCache]: Analyzing trace with hash -1414791404, now seen corresponding path program 1 times [2024-12-02 06:20:34,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:34,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409039926] [2024-12-02 06:20:34,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:34,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,579 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-12-02 06:20:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409039926] [2024-12-02 06:20:34,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409039926] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:34,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829833446] [2024-12-02 06:20:34,605 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:34,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:34,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:34,607 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:34,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-12-02 06:20:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:34,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 06:20:34,646 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:34,700 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:34,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829833446] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:34,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:34,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 17 [2024-12-02 06:20:34,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029395623] [2024-12-02 06:20:34,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:34,839 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 06:20:34,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:34,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1512524, now seen corresponding path program 2 times [2024-12-02 06:20:34,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:34,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385473061] [2024-12-02 06:20:34,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:34,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:34,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:34,842 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:34,844 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:34,879 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:34,879 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:34,879 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:34,879 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:34,879 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 06:20:34,879 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:34,879 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:34,879 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:34,879 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2024-12-02 06:20:34,879 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:34,879 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:34,880 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:34,882 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:34,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:34,885 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:34,891 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:34,919 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:34,919 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 06:20:34,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:34,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:34,921 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:34,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-12-02 06:20:34,923 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:34,923 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:34,938 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:34,938 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret4=0} Honda state: {fibo_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:34,944 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Ended with exit code 0 [2024-12-02 06:20:34,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:34,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:34,946 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:34,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-12-02 06:20:34,949 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:34,949 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:34,961 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:34,961 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_~n=0} Honda state: {fibo_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:34,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Ended with exit code 0 [2024-12-02 06:20:34,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:34,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:34,968 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:34,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Waiting until timeout for monitored process [2024-12-02 06:20:34,970 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:34,970 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:34,982 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-12-02 06:20:34,982 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo_#t~ret5=0} Honda state: {fibo_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-12-02 06:20:34,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (36)] Ended with exit code 0 [2024-12-02 06:20:34,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:34,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:34,991 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:34,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-12-02 06:20:34,993 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:34,993 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:35,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-12-02 06:20:35,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,015 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-12-02 06:20:35,017 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 06:20:35,017 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:35,084 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 06:20:35,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-12-02 06:20:35,088 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:35,088 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:35,088 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:35,088 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:35,088 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 06:20:35,088 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,088 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:35,088 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:35,088 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration5_Loop [2024-12-02 06:20:35,088 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:35,088 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:35,088 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:35,090 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:35,091 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:35,093 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:35,094 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:35,124 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:35,125 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 06:20:35,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,126 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-12-02 06:20:35,129 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:35,140 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:35,140 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:35,140 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:35,140 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:35,140 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:35,140 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:35,141 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:35,142 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:35,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Ended with exit code 0 [2024-12-02 06:20:35,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,149 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-12-02 06:20:35,152 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:35,163 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:35,163 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:35,164 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:35,164 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:35,164 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:35,164 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:35,164 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:35,165 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:35,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Ended with exit code 0 [2024-12-02 06:20:35,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,173 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-12-02 06:20:35,176 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:35,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:35,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:35,187 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:35,187 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:35,187 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:35,188 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:35,188 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:35,189 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:35,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-12-02 06:20:35,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,197 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-12-02 06:20:35,199 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:35,210 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:35,210 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:35,211 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:35,211 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:35,211 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:35,211 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:35,211 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:35,212 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-12-02 06:20:35,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Ended with exit code 0 [2024-12-02 06:20:35,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,221 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-12-02 06:20:35,223 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:35,234 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:35,234 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:35,234 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:35,234 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:35,235 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:35,235 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:35,235 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:35,237 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 06:20:35,240 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 06:20:35,240 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 06:20:35,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:35,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:35,242 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:35,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Waiting until timeout for monitored process [2024-12-02 06:20:35,244 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 06:20:35,244 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 06:20:35,244 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 06:20:35,244 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_#in~n) = 1*fibo_#in~n Supporting invariants [] [2024-12-02 06:20:35,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Ended with exit code 0 [2024-12-02 06:20:35,252 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 06:20:35,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,313 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,399 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:35,425 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-12-02 06:20:35,425 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,468 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (44)] Ended with exit code 0 [2024-12-02 06:20:35,495 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 543 states and 829 transitions. Complement of second has 15 states. [2024-12-02 06:20:35,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2024-12-02 06:20:35,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2024-12-02 06:20:35,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:35,497 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 06:20:35,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,644 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:35,663 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 3 loop predicates [2024-12-02 06:20:35,663 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,720 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 543 states and 829 transitions. Complement of second has 15 states. [2024-12-02 06:20:35,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:35,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 13 transitions. [2024-12-02 06:20:35,722 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 13 transitions. Stem has 37 letters. Loop has 4 letters. [2024-12-02 06:20:35,722 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:35,722 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 06:20:35,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,788 INFO L256 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,790 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:35,880 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:35,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:35,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:35,903 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2024-12-02 06:20:35,903 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296 Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,978 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 527 states and 813 transitions. cyclomatic complexity: 296. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 696 states and 998 transitions. Complement of second has 19 states. [2024-12-02 06:20:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:35,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:35,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2024-12-02 06:20:35,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 4 letters. [2024-12-02 06:20:35,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:35,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 41 letters. Loop has 4 letters. [2024-12-02 06:20:35,981 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:35,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 21 transitions. Stem has 37 letters. Loop has 8 letters. [2024-12-02 06:20:35,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:35,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 696 states and 998 transitions. [2024-12-02 06:20:35,992 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:36,002 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 696 states to 583 states and 873 transitions. [2024-12-02 06:20:36,003 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 210 [2024-12-02 06:20:36,003 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2024-12-02 06:20:36,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 583 states and 873 transitions. [2024-12-02 06:20:36,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:36,004 INFO L218 hiAutomatonCegarLoop]: Abstraction has 583 states and 873 transitions. [2024-12-02 06:20:36,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states and 873 transitions. [2024-12-02 06:20:36,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 553. [2024-12-02 06:20:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 345 states have (on average 1.173913043478261) internal successors, (405), 370 states have internal predecessors, (405), 121 states have call successors, (135), 62 states have call predecessors, (135), 87 states have return successors, (297), 120 states have call predecessors, (297), 115 states have call successors, (297) [2024-12-02 06:20:36,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 837 transitions. [2024-12-02 06:20:36,031 INFO L240 hiAutomatonCegarLoop]: Abstraction has 553 states and 837 transitions. [2024-12-02 06:20:36,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:20:36,031 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 06:20:36,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:20:36,032 INFO L87 Difference]: Start difference. First operand 553 states and 837 transitions. Second operand has 17 states, 16 states have (on average 1.875) internal successors, (30), 12 states have internal predecessors, (30), 7 states have call successors, (8), 7 states have call predecessors, (8), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:36,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:36,226 INFO L93 Difference]: Finished difference Result 641 states and 987 transitions. [2024-12-02 06:20:36,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 641 states and 987 transitions. [2024-12-02 06:20:36,236 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:36,247 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 641 states to 624 states and 965 transitions. [2024-12-02 06:20:36,247 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 234 [2024-12-02 06:20:36,248 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 234 [2024-12-02 06:20:36,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 624 states and 965 transitions. [2024-12-02 06:20:36,248 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:36,248 INFO L218 hiAutomatonCegarLoop]: Abstraction has 624 states and 965 transitions. [2024-12-02 06:20:36,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states and 965 transitions. [2024-12-02 06:20:36,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 588. [2024-12-02 06:20:36,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 366 states have (on average 1.169398907103825) internal successors, (428), 394 states have internal predecessors, (428), 134 states have call successors, (150), 69 states have call predecessors, (150), 88 states have return successors, (314), 124 states have call predecessors, (314), 127 states have call successors, (314) [2024-12-02 06:20:36,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 892 transitions. [2024-12-02 06:20:36,278 INFO L240 hiAutomatonCegarLoop]: Abstraction has 588 states and 892 transitions. [2024-12-02 06:20:36,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-12-02 06:20:36,279 INFO L425 stractBuchiCegarLoop]: Abstraction has 588 states and 892 transitions. [2024-12-02 06:20:36,279 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 06:20:36,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 588 states and 892 transitions. [2024-12-02 06:20:36,284 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:36,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 06:20:36,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 06:20:36,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [10, 10, 9, 8, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 06:20:36,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-12-02 06:20:36,285 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(11, 2);call #Ultimate.allocInit(12, 3);" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret6#1, main_~x~0#1, main_~result~0#1;main_~x~0#1 := 7;" "call main_#t~ret6#1 := fibo(main_~x~0#1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume 1 == ~n;#res := 1;" "assume true;" >"#35#return;" "call #t~ret5 := fibo(~n - 2);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-12-02 06:20:36,285 INFO L749 eck$LassoCheckResult]: Loop: "call #t~ret4 := fibo(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" [2024-12-02 06:20:36,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:36,286 INFO L85 PathProgramCache]: Analyzing trace with hash 283397944, now seen corresponding path program 2 times [2024-12-02 06:20:36,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:36,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212875217] [2024-12-02 06:20:36,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:36,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:36,504 INFO L370 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-12-02 06:20:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:36,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 06:20:36,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212875217] [2024-12-02 06:20:36,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212875217] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 06:20:36,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94408615] [2024-12-02 06:20:36,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:36,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 06:20:36,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:36,511 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 06:20:36,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-12-02 06:20:36,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:36,554 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-12-02 06:20:36,556 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:36,606 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 06:20:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [94408615] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 06:20:36,738 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 06:20:36,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 17 [2024-12-02 06:20:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120462632] [2024-12-02 06:20:36,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 06:20:36,739 INFO L752 eck$LassoCheckResult]: stem already infeasible [2024-12-02 06:20:36,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1955414, now seen corresponding path program 3 times [2024-12-02 06:20:36,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 06:20:36,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960827636] [2024-12-02 06:20:36,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 06:20:36,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 06:20:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:36,742 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 06:20:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 06:20:36,744 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 06:20:36,794 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:36,794 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:36,794 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:36,794 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:36,794 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-12-02 06:20:36,794 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:36,794 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:36,794 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:36,794 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2024-12-02 06:20:36,794 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:36,794 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:36,795 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:36,803 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:36,805 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:36,807 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:36,840 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:36,841 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-12-02 06:20:36,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:36,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:36,842 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:36,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Waiting until timeout for monitored process [2024-12-02 06:20:36,845 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-12-02 06:20:36,845 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:36,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (46)] Ended with exit code 0 [2024-12-02 06:20:36,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:36,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:36,871 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:36,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-12-02 06:20:36,873 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-12-02 06:20:36,873 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-12-02 06:20:37,017 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-12-02 06:20:37,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Ended with exit code 0 [2024-12-02 06:20:37,022 INFO L204 LassoAnalysis]: Preferences: [2024-12-02 06:20:37,022 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-12-02 06:20:37,022 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-12-02 06:20:37,022 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-12-02 06:20:37,022 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-12-02 06:20:37,022 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:37,022 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-12-02 06:20:37,022 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-12-02 06:20:37,022 INFO L132 ssoRankerPreferences]: Filename of dumped script: fibo_7-1.c_Iteration6_Loop [2024-12-02 06:20:37,022 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-12-02 06:20:37,022 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-12-02 06:20:37,023 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:37,030 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:37,032 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:37,034 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-12-02 06:20:37,070 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-12-02 06:20:37,070 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-12-02 06:20:37,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:37,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:37,072 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:37,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-12-02 06:20:37,075 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-12-02 06:20:37,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-12-02 06:20:37,089 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-12-02 06:20:37,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-12-02 06:20:37,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-12-02 06:20:37,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-12-02 06:20:37,090 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-12-02 06:20:37,090 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-12-02 06:20:37,092 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-12-02 06:20:37,095 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-12-02 06:20:37,095 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-12-02 06:20:37,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 06:20:37,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 06:20:37,097 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 06:20:37,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-12-02 06:20:37,100 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-12-02 06:20:37,100 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-12-02 06:20:37,101 INFO L474 LassoAnalysis]: Proved termination. [2024-12-02 06:20:37,101 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo_~n) = 1*fibo_~n Supporting invariants [] [2024-12-02 06:20:37,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Ended with exit code 0 [2024-12-02 06:20:37,109 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-12-02 06:20:37,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:37,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:37,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:20:37,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:37,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-12-02 06:20:37,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:37,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:37,294 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:37,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:37,324 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 4 loop predicates [2024-12-02 06:20:37,324 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:37,371 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 604 states and 909 transitions. Complement of second has 18 states. [2024-12-02 06:20:37,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 2 stem states 3 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:37,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 11 transitions. [2024-12-02 06:20:37,372 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 11 transitions. Stem has 44 letters. Loop has 4 letters. [2024-12-02 06:20:37,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:37,372 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-12-02 06:20:37,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 06:20:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:37,439 INFO L256 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-12-02 06:20:37,440 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 06:20:37,520 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 06:20:37,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 06:20:37,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 06:20:37,548 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 4 loop predicates [2024-12-02 06:20:37,548 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314 Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:37,620 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 588 states and 892 transitions. cyclomatic complexity: 314. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Result 824 states and 1226 transitions. Complement of second has 22 states. [2024-12-02 06:20:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 2 stem states 4 non-accepting loop states 1 accepting loop states [2024-12-02 06:20:37,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 15 transitions. [2024-12-02 06:20:37,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 44 letters. Loop has 4 letters. [2024-12-02 06:20:37,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:37,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 48 letters. Loop has 4 letters. [2024-12-02 06:20:37,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:37,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 15 transitions. Stem has 44 letters. Loop has 8 letters. [2024-12-02 06:20:37,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-12-02 06:20:37,622 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 824 states and 1226 transitions. [2024-12-02 06:20:37,630 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 54 [2024-12-02 06:20:37,640 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 824 states to 760 states and 1154 transitions. [2024-12-02 06:20:37,640 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2024-12-02 06:20:37,641 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 277 [2024-12-02 06:20:37,641 INFO L73 IsDeterministic]: Start isDeterministic. Operand 760 states and 1154 transitions. [2024-12-02 06:20:37,641 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-12-02 06:20:37,641 INFO L218 hiAutomatonCegarLoop]: Abstraction has 760 states and 1154 transitions. [2024-12-02 06:20:37,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states and 1154 transitions. [2024-12-02 06:20:37,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 740. [2024-12-02 06:20:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 466 states have (on average 1.150214592274678) internal successors, (536), 501 states have internal predecessors, (536), 167 states have call successors, (201), 94 states have call predecessors, (201), 107 states have return successors, (393), 144 states have call predecessors, (393), 160 states have call successors, (393) [2024-12-02 06:20:37,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1130 transitions. [2024-12-02 06:20:37,666 INFO L240 hiAutomatonCegarLoop]: Abstraction has 740 states and 1130 transitions. [2024-12-02 06:20:37,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 06:20:37,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-12-02 06:20:37,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-12-02 06:20:37,667 INFO L87 Difference]: Start difference. First operand 740 states and 1130 transitions. Second operand has 17 states, 16 states have (on average 1.8125) internal successors, (29), 10 states have internal predecessors, (29), 8 states have call successors, (9), 9 states have call predecessors, (9), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 06:20:37,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 06:20:37,861 INFO L93 Difference]: Finished difference Result 319 states and 377 transitions. [2024-12-02 06:20:37,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 319 states and 377 transitions. [2024-12-02 06:20:37,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 06:20:37,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 319 states to 0 states and 0 transitions. [2024-12-02 06:20:37,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2024-12-02 06:20:37,864 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2024-12-02 06:20:37,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2024-12-02 06:20:37,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 06:20:37,864 INFO L218 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:20:37,864 INFO L240 hiAutomatonCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:20:37,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 06:20:37,865 INFO L425 stractBuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 06:20:37,865 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-12-02 06:20:37,865 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2024-12-02 06:20:37,865 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2024-12-02 06:20:37,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2024-12-02 06:20:37,873 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 06:20:37 BoogieIcfgContainer [2024-12-02 06:20:37,873 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 06:20:37,874 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 06:20:37,874 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 06:20:37,874 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 06:20:37,875 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 06:20:28" (3/4) ... [2024-12-02 06:20:37,877 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 06:20:37,878 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 06:20:37,878 INFO L158 Benchmark]: Toolchain (without parser) took 9356.78ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 117.3MB in the beginning and 212.3MB in the end (delta: -95.0MB). Peak memory consumption was 76.3MB. Max. memory is 16.1GB. [2024-12-02 06:20:37,879 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:20:37,879 INFO L158 Benchmark]: CACSL2BoogieTranslator took 147.56ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.8MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:20:37,879 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.08ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.8MB in the end (delta: 821.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:20:37,879 INFO L158 Benchmark]: Boogie Preprocessor took 22.56ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 06:20:37,879 INFO L158 Benchmark]: RCFGBuilder took 190.54ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 95.2MB in the end (delta: 9.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 06:20:37,880 INFO L158 Benchmark]: BuchiAutomizer took 8962.40ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 94.9MB in the beginning and 214.3MB in the end (delta: -119.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-12-02 06:20:37,880 INFO L158 Benchmark]: Witness Printer took 3.61ms. Allocated memory is still 310.4MB. Free memory was 212.3MB in the beginning and 212.3MB in the end (delta: 39.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 06:20:37,882 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 142.6MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 147.56ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.8MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.08ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.8MB in the end (delta: 821.4kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.56ms. Allocated memory is still 142.6MB. Free memory was 105.8MB in the beginning and 104.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 190.54ms. Allocated memory is still 142.6MB. Free memory was 104.6MB in the beginning and 95.2MB in the end (delta: 9.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 8962.40ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 94.9MB in the beginning and 214.3MB in the end (delta: -119.4MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 3.61ms. Allocated memory is still 310.4MB. Free memory was 212.3MB in the beginning and 212.3MB in the end (delta: 39.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 10 terminating modules (5 trivial, 3 deterministic, 2 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 5 locations. One deterministic module has affine ranking function n and consists of 10 locations. One deterministic module has affine ranking function n and consists of 7 locations. One nondeterministic module has affine ranking function n and consists of 10 locations. One nondeterministic module has affine ranking function \old(n) and consists of 6 locations. 5 modules have a trivial ranking function, the largest among these consists of 19 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 8.9s and 7 iterations. TraceHistogramMax:10. Analysis of lassos took 4.3s. Construction of modules took 0.8s. Büchi inclusion checks took 3.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 9. Automata minimization 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 212 StatesRemovedByMinimization, 8 NontrivialMinimizations. Non-live state removal took 0.1s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [2, 1, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/6 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 456 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 431 mSDsluCounter, 609 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 390 mSDsCounter, 263 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1308 IncrementalHoareTripleChecker+Invalid, 1571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 263 mSolverCounterUnsat, 219 mSDtfsCounter, 1308 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI1 SILT4 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf100 lsp82 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq185 hnf92 smp80 dnf100 smp100 tf112 neg100 sie106 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 22ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 5 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! [2024-12-02 06:20:37,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Forceful destruction successful, exit code 0 [2024-12-02 06:20:38,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-12-02 06:20:38,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-12-02 06:20:38,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-12-02 06:20:38,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 06:20:38,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 06:20:39,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fceb4a01-4058-4283-8c1d-00f916643224/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE