./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU --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 64bit --witnessprinter.graph.data.programhash 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-10-31 21:59:53,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 21:59:53,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Termination-64bit-Automizer_Default.epf [2024-10-31 21:59:53,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 21:59:53,872 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 21:59:53,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 21:59:53,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 21:59:53,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 21:59:53,936 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 21:59:53,939 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 21:59:53,940 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 21:59:53,940 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 21:59:53,940 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 21:59:53,941 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-10-31 21:59:53,941 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-10-31 21:59:53,944 INFO L153 SettingsManager]: * Use old map elimination=false [2024-10-31 21:59:53,944 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-10-31 21:59:53,945 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-10-31 21:59:53,948 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-10-31 21:59:53,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 21:59:53,949 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-10-31 21:59:53,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 21:59:53,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 21:59:53,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-10-31 21:59:53,950 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-10-31 21:59:53,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-10-31 21:59:53,951 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 21:59:53,968 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-31 21:59:53,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 21:59:53,969 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-10-31 21:59:53,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 21:59:53,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 21:59:53,970 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 21:59:53,971 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 21:59:53,971 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 21:59:53,971 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-10-31 21:59:53,972 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14cfbc3a2ba2bfe3a03d4d1ebff24b0baf1851f06dbbd2468b59e09322e4ce16 [2024-10-31 21:59:54,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 21:59:54,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 21:59:54,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 21:59:54,308 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 21:59:54,309 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 21:59:54,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/../../sv-benchmarks/c/termination-numeric/Fibonacci01-2.c Unable to find full path for "g++" [2024-10-31 21:59:56,530 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 21:59:56,792 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 21:59:56,792 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/sv-benchmarks/c/termination-numeric/Fibonacci01-2.c [2024-10-31 21:59:56,800 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/data/7c7bdb5da/86279f41bd5c4dc3be138ded4cf98fb2/FLAG809b3d700 [2024-10-31 21:59:57,148 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/data/7c7bdb5da/86279f41bd5c4dc3be138ded4cf98fb2 [2024-10-31 21:59:57,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 21:59:57,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 21:59:57,156 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:57,156 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 21:59:57,165 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 21:59:57,166 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,167 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b98cb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57, skipping insertion in model container [2024-10-31 21:59:57,168 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,191 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 21:59:57,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:57,431 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 21:59:57,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 21:59:57,488 INFO L204 MainTranslator]: Completed translation [2024-10-31 21:59:57,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57 WrapperNode [2024-10-31 21:59:57,489 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 21:59:57,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:57,491 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 21:59:57,491 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 21:59:57,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,542 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2024-10-31 21:59:57,543 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 21:59:57,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 21:59:57,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 21:59:57,546 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 21:59:57,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,566 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,580 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]. [2024-10-31 21:59:57,581 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,581 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,588 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,590 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,591 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,593 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 21:59:57,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 21:59:57,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 21:59:57,598 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 21:59:57,599 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (1/1) ... [2024-10-31 21:59:57,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:57,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:57,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:57,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-10-31 21:59:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2024-10-31 21:59:57,703 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2024-10-31 21:59:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 21:59:57,703 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 21:59:57,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 21:59:57,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 21:59:57,774 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 21:59:57,775 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 21:59:57,917 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-10-31 21:59:57,917 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 21:59:57,931 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 21:59:57,931 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-31 21:59:57,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:57 BoogieIcfgContainer [2024-10-31 21:59:57,932 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 21:59:57,934 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-10-31 21:59:57,934 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-10-31 21:59:57,940 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-10-31 21:59:57,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:57,941 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 31.10 09:59:57" (1/3) ... [2024-10-31 21:59:57,943 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d434722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:57, skipping insertion in model container [2024-10-31 21:59:57,943 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:57,943 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 09:59:57" (2/3) ... [2024-10-31 21:59:57,944 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4d434722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 31.10 09:59:57, skipping insertion in model container [2024-10-31 21:59:57,944 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-10-31 21:59:57,944 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 09:59:57" (3/3) ... [2024-10-31 21:59:57,946 INFO L332 chiAutomizerObserver]: Analyzing ICFG Fibonacci01-2.c [2024-10-31 21:59:58,078 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-10-31 21:59:58,082 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-10-31 21:59:58,083 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-10-31 21:59:58,083 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-10-31 21:59:58,083 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-10-31 21:59:58,083 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-10-31 21:59:58,083 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-10-31 21:59:58,084 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-10-31 21:59:58,093 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-10-31 21:59:58,135 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 21:59:58,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:58,138 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:58,146 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 21:59:58,146 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:59:58,146 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-10-31 21:59:58,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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) [2024-10-31 21:59:58,150 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 21:59:58,151 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:58,151 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:58,152 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2024-10-31 21:59:58,152 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 21:59:58,163 INFO L745 eck$LassoCheckResult]: Stem: 16#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 7#L29true assume !(main_~x~0#1 < 1); 9#L31true call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 13#$Ultimate##0true [2024-10-31 21:59:58,164 INFO L747 eck$LassoCheckResult]: Loop: 13#$Ultimate##0true ~n := #in~n; 4#L17true assume !(~n < 1); 18#L19true assume !(1 == ~n); 15#L22true call #t~ret4 := fibonacci(~n - 1);< 13#$Ultimate##0true [2024-10-31 21:59:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1325878, now seen corresponding path program 1 times [2024-10-31 21:59:58,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759444641] [2024-10-31 21:59:58,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,321 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:58,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,364 INFO L85 PathProgramCache]: Analyzing trace with hash 927648, now seen corresponding path program 1 times [2024-10-31 21:59:58,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044741668] [2024-10-31 21:59:58,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,376 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:58,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,389 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:58,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:58,391 INFO L85 PathProgramCache]: Analyzing trace with hash 410501205, now seen corresponding path program 1 times [2024-10-31 21:59:58,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:58,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854849529] [2024-10-31 21:59:58,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:58,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:58,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,420 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 21:59:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 21:59:58,442 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 21:59:58,641 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:59:58,642 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:59:58,642 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:59:58,642 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:59:58,643 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 21:59:58,643 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:58,643 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:59:58,643 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:59:58,643 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration1_Loop [2024-10-31 21:59:58,643 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:59:58,644 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:59:58,674 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:58,700 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:58,705 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:58,714 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:58,737 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:58,834 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:59:58,834 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 21:59:58,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:58,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Waiting until timeout for monitored process [2024-10-31 21:59:58,846 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:58,847 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:58,873 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:59:58,873 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#res=0} Honda state: {fibonacci_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:59:58,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Ended with exit code 0 [2024-10-31 21:59:58,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:58,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Waiting until timeout for monitored process [2024-10-31 21:59:58,901 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:58,901 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:58,918 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:59:58,918 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret5=0} Honda state: {fibonacci_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:59:58,937 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (3)] Ended with exit code 0 [2024-10-31 21:59:58,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:58,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Waiting until timeout for monitored process [2024-10-31 21:59:58,942 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:58,942 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:58,961 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 21:59:58,961 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_~n=0} Honda state: {fibonacci_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 21:59:58,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (4)] Ended with exit code 0 [2024-10-31 21:59:58,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:58,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:58,994 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:58,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Waiting until timeout for monitored process [2024-10-31 21:59:58,997 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 21:59:58,997 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:59,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (5)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:59,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,040 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Waiting until timeout for monitored process [2024-10-31 21:59:59,043 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 21:59:59,043 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 21:59:59,122 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 21:59:59,125 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (6)] Ended with exit code 0 [2024-10-31 21:59:59,127 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 21:59:59,127 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 21:59:59,127 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 21:59:59,127 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 21:59:59,127 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 21:59:59,127 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,128 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 21:59:59,128 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 21:59:59,128 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration1_Loop [2024-10-31 21:59:59,128 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 21:59:59,128 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 21:59:59,130 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:59,135 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:59,138 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:59,142 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:59,153 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 21:59:59,240 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 21:59:59,250 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 21:59:59,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,253 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Waiting until timeout for monitored process [2024-10-31 21:59:59,257 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 [2024-10-31 21:59:59,271 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:59,271 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:59,272 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:59,272 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:59,272 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:59,275 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:59,275 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:59,279 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:59,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (7)] Ended with exit code 0 [2024-10-31 21:59:59,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,301 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Waiting until timeout for monitored process [2024-10-31 21:59:59,304 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 [2024-10-31 21:59:59,318 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:59,318 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:59,318 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:59,319 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:59,348 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:59,349 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:59,349 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:59,354 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:59,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (8)] Ended with exit code 0 [2024-10-31 21:59:59,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,375 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Waiting until timeout for monitored process [2024-10-31 21:59:59,377 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 [2024-10-31 21:59:59,389 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:59,389 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:59,389 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:59,389 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:59,389 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:59,390 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:59,390 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:59,392 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 21:59:59,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (9)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:59,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,408 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Waiting until timeout for monitored process [2024-10-31 21:59:59,409 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 [2024-10-31 21:59:59,421 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 21:59:59,421 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 21:59:59,421 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 21:59:59,421 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 21:59:59,421 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 21:59:59,423 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 21:59:59,423 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 21:59:59,427 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 21:59:59,431 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 21:59:59,432 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 21:59:59,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 21:59:59,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 21:59:59,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 21:59:59,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Waiting until timeout for monitored process [2024-10-31 21:59:59,439 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 21:59:59,440 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 21:59:59,440 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 21:59:59,440 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibonacci_#in~n) = 1*fibonacci_#in~n Supporting invariants [] [2024-10-31 21:59:59,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (10)] Forceful destruction successful, exit code 0 [2024-10-31 21:59:59,465 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 21:59:59,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,533 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-31 21:59:59,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 21:59:59,563 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 21:59:59,565 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 21:59:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 21:59:59,672 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 [2024-10-31 21:59:59,675 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-10-31 21:59:59,832 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand has 19 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 44 states and 57 transitions. Complement of second has 16 states. [2024-10-31 21:59:59,835 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 [2024-10-31 21:59:59,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2024-10-31 21:59:59,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 14 transitions. [2024-10-31 21:59:59,845 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 4 letters. Loop has 4 letters. [2024-10-31 21:59:59,846 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:59,847 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 8 letters. Loop has 4 letters. [2024-10-31 21:59:59,847 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:59,848 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 14 transitions. Stem has 4 letters. Loop has 8 letters. [2024-10-31 21:59:59,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 21:59:59,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2024-10-31 21:59:59,855 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 21:59:59,865 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 24 states and 32 transitions. [2024-10-31 21:59:59,868 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 16 [2024-10-31 21:59:59,869 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2024-10-31 21:59:59,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 32 transitions. [2024-10-31 21:59:59,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 21:59:59,872 INFO L218 hiAutomatonCegarLoop]: Abstraction has 24 states and 32 transitions. [2024-10-31 21:59:59,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states and 32 transitions. [2024-10-31 21:59:59,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2024-10-31 21:59:59,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 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) [2024-10-31 21:59:59,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2024-10-31 21:59:59,912 INFO L240 hiAutomatonCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-31 21:59:59,912 INFO L425 stractBuchiCegarLoop]: Abstraction has 21 states and 27 transitions. [2024-10-31 21:59:59,912 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-10-31 21:59:59,913 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 27 transitions. [2024-10-31 21:59:59,914 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 21:59:59,914 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 21:59:59,914 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 21:59:59,915 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,915 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 21:59:59,918 INFO L745 eck$LassoCheckResult]: Stem: 138#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 139#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 140#L29 assume !(main_~x~0#1 < 1); 127#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 143#$Ultimate##0 ~n := #in~n; 134#L17 assume !(~n < 1); 135#L19 assume !(1 == ~n); 128#L22 call #t~ret4 := fibonacci(~n - 1);< 136#$Ultimate##0 ~n := #in~n; 131#L17 assume ~n < 1;#res := 0; 132#fibonacciFINAL assume true; 137#fibonacciEXIT >#36#return; 126#L22-1 [2024-10-31 21:59:59,919 INFO L747 eck$LassoCheckResult]: Loop: 126#L22-1 call #t~ret5 := fibonacci(~n - 2);< 130#$Ultimate##0 ~n := #in~n; 146#L17 assume !(~n < 1); 145#L19 assume !(1 == ~n); 129#L22 call #t~ret4 := fibonacci(~n - 1);< 130#$Ultimate##0 ~n := #in~n; 146#L17 assume ~n < 1;#res := 0; 142#fibonacciFINAL assume true; 144#fibonacciEXIT >#36#return; 126#L22-1 [2024-10-31 21:59:59,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 21:59:59,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1689937232, now seen corresponding path program 1 times [2024-10-31 21:59:59,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 21:59:59,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36448029] [2024-10-31 21:59:59,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 21:59:59,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 21:59:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:00,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36448029] [2024-10-31 22:00:00,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36448029] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:00,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010770698] [2024-10-31 22:00:00,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,114 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:00,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,115 INFO L85 PathProgramCache]: Analyzing trace with hash 1163555262, now seen corresponding path program 1 times [2024-10-31 22:00:00,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34243662] [2024-10-31 22:00:00,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-31 22:00:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-31 22:00:00,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34243662] [2024-10-31 22:00:00,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34243662] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:00:00,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:00:00,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-31 22:00:00,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890521218] [2024-10-31 22:00:00,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:00:00,257 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:00:00,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:00,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-31 22:00:00,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-31 22:00:00,262 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. cyclomatic complexity: 8 Second operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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) [2024-10-31 22:00:00,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:00,366 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2024-10-31 22:00:00,366 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 33 transitions. [2024-10-31 22:00:00,370 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:00,371 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 25 states and 31 transitions. [2024-10-31 22:00:00,371 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2024-10-31 22:00:00,372 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2024-10-31 22:00:00,372 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 31 transitions. [2024-10-31 22:00:00,372 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:00,372 INFO L218 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-10-31 22:00:00,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states and 31 transitions. [2024-10-31 22:00:00,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-10-31 22:00:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 19 states have internal predecessors, (20), 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) [2024-10-31 22:00:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2024-10-31 22:00:00,382 INFO L240 hiAutomatonCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-10-31 22:00:00,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-31 22:00:00,384 INFO L425 stractBuchiCegarLoop]: Abstraction has 25 states and 31 transitions. [2024-10-31 22:00:00,385 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-10-31 22:00:00,385 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states and 31 transitions. [2024-10-31 22:00:00,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:00,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:00,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:00,387 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,387 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:00,387 INFO L745 eck$LassoCheckResult]: Stem: 211#$Ultimate##0 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(16, 2);call #Ultimate.allocInit(12, 3); 212#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 213#L29 assume !(main_~x~0#1 < 1); 201#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 215#$Ultimate##0 ~n := #in~n; 207#L17 assume !(~n < 1); 208#L19 assume !(1 == ~n); 202#L22 call #t~ret4 := fibonacci(~n - 1);< 204#$Ultimate##0 ~n := #in~n; 205#L17 assume !(~n < 1); 206#L19 assume 1 == ~n;#res := 1; 216#fibonacciFINAL assume true; 220#fibonacciEXIT >#36#return; 199#L22-1 [2024-10-31 22:00:00,388 INFO L747 eck$LassoCheckResult]: Loop: 199#L22-1 call #t~ret5 := fibonacci(~n - 2);< 203#$Ultimate##0 ~n := #in~n; 223#L17 assume !(~n < 1); 221#L19 assume !(1 == ~n); 200#L22 call #t~ret4 := fibonacci(~n - 1);< 203#$Ultimate##0 ~n := #in~n; 223#L17 assume !(~n < 1); 221#L19 assume 1 == ~n;#res := 1; 222#fibonacciFINAL assume true; 218#fibonacciEXIT >#36#return; 199#L22-1 [2024-10-31 22:00:00,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,389 INFO L85 PathProgramCache]: Analyzing trace with hash -848422362, now seen corresponding path program 1 times [2024-10-31 22:00:00,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9695339] [2024-10-31 22:00:00,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,409 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:00,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1710499032, now seen corresponding path program 1 times [2024-10-31 22:00:00,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706248290] [2024-10-31 22:00:00,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,418 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:00,427 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:00,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:00,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2129161027, now seen corresponding path program 1 times [2024-10-31 22:00:00,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:00,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530282622] [2024-10-31 22:00:00,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-31 22:00:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,586 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:00:00,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:00,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530282622] [2024-10-31 22:00:00,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530282622] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:00,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928334500] [2024-10-31 22:00:00,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:00,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:00,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:00,590 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:00,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-31 22:00:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:00,656 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:00,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:00,717 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-31 22:00:00,718 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:00,857 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-10-31 22:00:00,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928334500] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:00,859 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:00,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 9 [2024-10-31 22:00:00,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628862784] [2024-10-31 22:00:00,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:01,037 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:01,038 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:01,038 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:01,038 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:01,038 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:01,039 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,039 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:01,039 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:01,039 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration3_Loop [2024-10-31 22:00:01,040 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:01,040 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:01,040 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,043 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,047 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,050 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,058 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,109 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:01,109 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:01,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,111 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Waiting until timeout for monitored process [2024-10-31 22:00:01,114 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:01,114 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:01,126 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:01,126 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#res=0} Honda state: {fibonacci_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:01,147 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (13)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:01,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,151 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Waiting until timeout for monitored process [2024-10-31 22:00:01,154 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:01,155 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:01,168 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:01,169 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret4=1} Honda state: {fibonacci_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:01,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (14)] Ended with exit code 0 [2024-10-31 22:00:01,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,197 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Waiting until timeout for monitored process [2024-10-31 22:00:01,201 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:01,201 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:01,219 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:01,219 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret5=0} Honda state: {fibonacci_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:01,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (15)] Ended with exit code 0 [2024-10-31 22:00:01,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,240 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Waiting until timeout for monitored process [2024-10-31 22:00:01,244 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:01,245 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:01,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (16)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:01,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,284 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Waiting until timeout for monitored process [2024-10-31 22:00:01,286 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:01,286 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:01,302 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:01,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (17)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:01,321 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:01,321 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:01,321 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:01,321 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:01,321 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:01,321 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,321 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:01,321 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:01,321 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration3_Loop [2024-10-31 22:00:01,322 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:01,322 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:01,323 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,328 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,332 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,336 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,343 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:01,395 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:01,395 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:01,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,398 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Waiting until timeout for monitored process [2024-10-31 22:00:01,401 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 [2024-10-31 22:00:01,415 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:01,416 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:01,416 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:01,416 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:01,416 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:01,417 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:01,418 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:01,421 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:01,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (18)] Ended with exit code 0 [2024-10-31 22:00:01,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,442 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Waiting until timeout for monitored process [2024-10-31 22:00:01,444 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 [2024-10-31 22:00:01,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:01,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:01,459 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:01,459 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:01,459 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:01,460 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:01,460 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:01,467 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:01,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (19)] Ended with exit code 0 [2024-10-31 22:00:01,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,490 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Waiting until timeout for monitored process [2024-10-31 22:00:01,496 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 [2024-10-31 22:00:01,511 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:01,511 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:01,512 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:01,512 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:01,512 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:01,514 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:01,514 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:01,516 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:01,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (20)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:01,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,540 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Waiting until timeout for monitored process [2024-10-31 22:00:01,542 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 [2024-10-31 22:00:01,557 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:01,557 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:01,557 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:01,557 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:01,557 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:01,559 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:01,559 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:01,562 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:01,569 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:01,580 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:01,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:01,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:01,585 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:01,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Waiting until timeout for monitored process [2024-10-31 22:00:01,595 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:01,595 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:01,595 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:01,595 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibonacci_~n) = 1*fibonacci_~n Supporting invariants [] [2024-10-31 22:00:01,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (11)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:01,619 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (21)] Ended with exit code 0 [2024-10-31 22:00:01,620 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:01,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-31 22:00:01,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:01,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:01,829 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-31 22:00:01,834 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:01,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:01,949 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 [2024-10-31 22:00:01,949 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 8 Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-10-31 22:00:02,261 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states and 31 transitions. cyclomatic complexity: 8. Second operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 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 129 states and 179 transitions. Complement of second has 40 states. [2024-10-31 22:00:02,262 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 [2024-10-31 22:00:02,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 5 states have internal predecessors, (17), 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) [2024-10-31 22:00:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 41 transitions. [2024-10-31 22:00:02,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 13 letters. Loop has 10 letters. [2024-10-31 22:00:02,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:02,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 23 letters. Loop has 10 letters. [2024-10-31 22:00:02,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:02,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 10 states and 41 transitions. Stem has 13 letters. Loop has 20 letters. [2024-10-31 22:00:02,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:02,266 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 129 states and 179 transitions. [2024-10-31 22:00:02,272 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 10 [2024-10-31 22:00:02,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 129 states to 106 states and 152 transitions. [2024-10-31 22:00:02,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 63 [2024-10-31 22:00:02,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 67 [2024-10-31 22:00:02,276 INFO L73 IsDeterministic]: Start isDeterministic. Operand 106 states and 152 transitions. [2024-10-31 22:00:02,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:02,277 INFO L218 hiAutomatonCegarLoop]: Abstraction has 106 states and 152 transitions. [2024-10-31 22:00:02,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states and 152 transitions. [2024-10-31 22:00:02,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 95. [2024-10-31 22:00:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 65 states have internal predecessors, (72), 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) [2024-10-31 22:00:02,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 129 transitions. [2024-10-31 22:00:02,300 INFO L240 hiAutomatonCegarLoop]: Abstraction has 95 states and 129 transitions. [2024-10-31 22:00:02,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:02,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-31 22:00:02,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-31 22:00:02,301 INFO L87 Difference]: Start difference. First operand 95 states and 129 transitions. Second operand has 9 states, 8 states have (on average 3.125) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:02,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:02,387 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2024-10-31 22:00:02,387 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 58 transitions. [2024-10-31 22:00:02,389 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:02,390 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 42 states and 54 transitions. [2024-10-31 22:00:02,390 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2024-10-31 22:00:02,391 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2024-10-31 22:00:02,391 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 54 transitions. [2024-10-31 22:00:02,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:02,392 INFO L218 hiAutomatonCegarLoop]: Abstraction has 42 states and 54 transitions. [2024-10-31 22:00:02,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states and 54 transitions. [2024-10-31 22:00:02,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 39. [2024-10-31 22:00:02,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 28 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 6 states have return successors, (12), 5 states have call predecessors, (12), 6 states have call successors, (12) [2024-10-31 22:00:02,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 48 transitions. [2024-10-31 22:00:02,396 INFO L240 hiAutomatonCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-10-31 22:00:02,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-31 22:00:02,400 INFO L425 stractBuchiCegarLoop]: Abstraction has 39 states and 48 transitions. [2024-10-31 22:00:02,400 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-10-31 22:00:02,400 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 39 states and 48 transitions. [2024-10-31 22:00:02,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2024-10-31 22:00:02,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:02,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:02,403 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-31 22:00:02,403 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1] [2024-10-31 22:00:02,404 INFO L745 eck$LassoCheckResult]: Stem: 801#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 802#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 803#L29 assume !(main_~x~0#1 < 1); 794#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 806#$Ultimate##0 ~n := #in~n; 793#L17 assume !(~n < 1); 795#L19 assume !(1 == ~n); 797#L22 call #t~ret4 := fibonacci(~n - 1);< 798#$Ultimate##0 ~n := #in~n; 810#L17 assume !(~n < 1); 825#L19 assume !(1 == ~n); 804#L22 call #t~ret4 := fibonacci(~n - 1);< 798#$Ultimate##0 ~n := #in~n; 809#L17 assume !(~n < 1); 807#L19 assume 1 == ~n;#res := 1; 808#fibonacciFINAL assume true; 824#fibonacciEXIT >#36#return; 819#L22-1 call #t~ret5 := fibonacci(~n - 2);< 820#$Ultimate##0 ~n := #in~n; 823#L17 assume ~n < 1;#res := 0; 821#fibonacciFINAL assume true; 818#fibonacciEXIT >#38#return; 817#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 816#fibonacciFINAL assume true; 815#fibonacciEXIT >#36#return; 789#L22-1 [2024-10-31 22:00:02,404 INFO L747 eck$LassoCheckResult]: Loop: 789#L22-1 call #t~ret5 := fibonacci(~n - 2);< 796#$Ultimate##0 ~n := #in~n; 814#L17 assume !(~n < 1); 812#L19 assume !(1 == ~n); 788#L22 call #t~ret4 := fibonacci(~n - 1);< 796#$Ultimate##0 ~n := #in~n; 814#L17 assume !(~n < 1); 812#L19 assume !(1 == ~n); 788#L22 call #t~ret4 := fibonacci(~n - 1);< 796#$Ultimate##0 ~n := #in~n; 814#L17 assume !(~n < 1); 812#L19 assume 1 == ~n;#res := 1; 813#fibonacciFINAL assume true; 822#fibonacciEXIT >#36#return; 787#L22-1 call #t~ret5 := fibonacci(~n - 2);< 790#$Ultimate##0 ~n := #in~n; 791#L17 assume ~n < 1;#res := 0; 792#fibonacciFINAL assume true; 799#fibonacciEXIT >#38#return; 800#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 805#fibonacciFINAL assume true; 811#fibonacciEXIT >#36#return; 789#L22-1 [2024-10-31 22:00:02,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1885512200, now seen corresponding path program 1 times [2024-10-31 22:00:02,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989234560] [2024-10-31 22:00:02,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,421 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,431 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:02,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1698967994, now seen corresponding path program 1 times [2024-10-31 22:00:02,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429616785] [2024-10-31 22:00:02,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,440 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:02,447 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:02,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:02,448 INFO L85 PathProgramCache]: Analyzing trace with hash -360938367, now seen corresponding path program 2 times [2024-10-31 22:00:02,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:02,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119001549] [2024-10-31 22:00:02,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:02,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-31 22:00:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:02,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:02,752 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 16 proven. 46 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-10-31 22:00:02,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:02,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119001549] [2024-10-31 22:00:02,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119001549] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:02,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294960817] [2024-10-31 22:00:02,753 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:02,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:02,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:02,755 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:02,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-31 22:00:02,821 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:02,822 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:02,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:02,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:02,930 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 50 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-10-31 22:00:02,930 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 25 proven. 52 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-10-31 22:00:03,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294960817] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:03,241 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:03,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 9] total 15 [2024-10-31 22:00:03,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262386194] [2024-10-31 22:00:03,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:03,492 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:03,492 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:03,492 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:03,492 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:03,492 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:03,492 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,492 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:03,493 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:03,493 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration4_Loop [2024-10-31 22:00:03,493 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:03,493 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:03,494 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,497 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,499 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,503 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,505 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,555 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:03,555 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:03,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,558 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Waiting until timeout for monitored process [2024-10-31 22:00:03,561 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,561 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,577 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:03,577 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret4=1} Honda state: {fibonacci_#t~ret4=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:03,595 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (24)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,597 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Waiting until timeout for monitored process [2024-10-31 22:00:03,600 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,600 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,618 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:03,618 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret5=0} Honda state: {fibonacci_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:03,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (25)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,638 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Waiting until timeout for monitored process [2024-10-31 22:00:03,660 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,660 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,679 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:03,679 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#in~n=3} Honda state: {fibonacci_#in~n=3} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:03,698 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (22)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (26)] Ended with exit code 0 [2024-10-31 22:00:03,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,702 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Waiting until timeout for monitored process [2024-10-31 22:00:03,706 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,706 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,725 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:03,725 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#res=0} Honda state: {fibonacci_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:03,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (27)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,745 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Waiting until timeout for monitored process [2024-10-31 22:00:03,748 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:03,749 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (28)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,787 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Waiting until timeout for monitored process [2024-10-31 22:00:03,790 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:03,790 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:03,807 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:03,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (29)] Ended with exit code 0 [2024-10-31 22:00:03,825 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:03,825 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:03,825 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:03,825 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:03,825 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:03,825 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,825 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:03,825 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:03,825 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration4_Loop [2024-10-31 22:00:03,825 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:03,825 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:03,827 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,831 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,833 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,835 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,839 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:03,881 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:03,883 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:03,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,885 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Waiting until timeout for monitored process [2024-10-31 22:00:03,891 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 [2024-10-31 22:00:03,905 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:03,905 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:03,905 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:03,905 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:03,905 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:03,906 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:03,906 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:03,909 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:03,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (30)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,928 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,929 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Waiting until timeout for monitored process [2024-10-31 22:00:03,930 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 [2024-10-31 22:00:03,945 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:03,945 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:03,945 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:03,945 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:03,945 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:03,946 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:03,946 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:03,950 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:03,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (31)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:03,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:03,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:03,970 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:03,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Waiting until timeout for monitored process [2024-10-31 22:00:03,972 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 [2024-10-31 22:00:03,986 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:03,986 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:03,986 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:03,986 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:03,987 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:03,988 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:03,988 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:03,990 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:04,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (32)] Ended with exit code 0 [2024-10-31 22:00:04,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,011 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Waiting until timeout for monitored process [2024-10-31 22:00:04,013 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 [2024-10-31 22:00:04,027 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:04,027 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:04,028 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:04,028 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:04,028 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:04,028 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:04,029 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:04,031 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:04,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (33)] Ended with exit code 0 [2024-10-31 22:00:04,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,052 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Waiting until timeout for monitored process [2024-10-31 22:00:04,054 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 [2024-10-31 22:00:04,067 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:04,068 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:04,068 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:04,068 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:04,068 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:04,069 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:04,069 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:04,072 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:04,076 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2024-10-31 22:00:04,076 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2024-10-31 22:00:04,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:04,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:04,078 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:04,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Waiting until timeout for monitored process [2024-10-31 22:00:04,081 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:04,081 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:04,081 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:04,081 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibonacci_~n) = 1*fibonacci_~n Supporting invariants [] [2024-10-31 22:00:04,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (34)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:04,107 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:04,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,183 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,186 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,465 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,467 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:04,629 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:04,630 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-31 22:00:04,630 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11 Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:04,753 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 46 states and 55 transitions. Complement of second has 11 states. [2024-10-31 22:00:04,754 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 [2024-10-31 22:00:04,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:04,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-10-31 22:00:04,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 25 letters. Loop has 22 letters. [2024-10-31 22:00:04,755 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:04,756 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:04,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:04,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:04,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,044 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,046 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,220 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:05,220 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 7 loop predicates [2024-10-31 22:00:05,221 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11 Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:05,340 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 46 states and 55 transitions. Complement of second has 11 states. [2024-10-31 22:00:05,341 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 [2024-10-31 22:00:05,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:05,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2024-10-31 22:00:05,342 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 25 letters. Loop has 22 letters. [2024-10-31 22:00:05,343 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:05,343 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:05,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:05,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,392 INFO L255 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,394 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,507 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (35)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:05,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:05,675 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-31 22:00:05,677 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:05,839 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-31 22:00:05,840 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 7 loop predicates [2024-10-31 22:00:05,840 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11 Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:06,193 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 39 states and 48 transitions. cyclomatic complexity: 11. Second operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) Result 332 states and 433 transitions. Complement of second has 134 states. [2024-10-31 22:00:06,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 11 states 2 stem states 8 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:06,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 4 states have return successors, (6), 3 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-31 22:00:06,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 46 transitions. [2024-10-31 22:00:06,196 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 46 transitions. Stem has 25 letters. Loop has 22 letters. [2024-10-31 22:00:06,198 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:06,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 46 transitions. Stem has 47 letters. Loop has 22 letters. [2024-10-31 22:00:06,199 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:06,199 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 11 states and 46 transitions. Stem has 25 letters. Loop has 44 letters. [2024-10-31 22:00:06,200 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:06,200 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 332 states and 433 transitions. [2024-10-31 22:00:06,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:06,227 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 332 states to 216 states and 295 transitions. [2024-10-31 22:00:06,227 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 98 [2024-10-31 22:00:06,228 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 114 [2024-10-31 22:00:06,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 216 states and 295 transitions. [2024-10-31 22:00:06,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:06,228 INFO L218 hiAutomatonCegarLoop]: Abstraction has 216 states and 295 transitions. [2024-10-31 22:00:06,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states and 295 transitions. [2024-10-31 22:00:06,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 174. [2024-10-31 22:00:06,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 108 states have (on average 1.1388888888888888) internal successors, (123), 114 states have internal predecessors, (123), 38 states have call successors, (42), 23 states have call predecessors, (42), 28 states have return successors, (61), 36 states have call predecessors, (61), 36 states have call successors, (61) [2024-10-31 22:00:06,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 226 transitions. [2024-10-31 22:00:06,266 INFO L240 hiAutomatonCegarLoop]: Abstraction has 174 states and 226 transitions. [2024-10-31 22:00:06,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:06,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-31 22:00:06,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2024-10-31 22:00:06,267 INFO L87 Difference]: Start difference. First operand 174 states and 226 transitions. Second operand has 15 states, 12 states have (on average 3.25) internal successors, (39), 13 states have internal predecessors, (39), 10 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 6 states have call predecessors, (12), 9 states have call successors, (12) [2024-10-31 22:00:06,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:06,456 INFO L93 Difference]: Finished difference Result 275 states and 381 transitions. [2024-10-31 22:00:06,456 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 275 states and 381 transitions. [2024-10-31 22:00:06,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:06,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 275 states to 274 states and 379 transitions. [2024-10-31 22:00:06,467 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 147 [2024-10-31 22:00:06,468 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 157 [2024-10-31 22:00:06,468 INFO L73 IsDeterministic]: Start isDeterministic. Operand 274 states and 379 transitions. [2024-10-31 22:00:06,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:06,469 INFO L218 hiAutomatonCegarLoop]: Abstraction has 274 states and 379 transitions. [2024-10-31 22:00:06,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states and 379 transitions. [2024-10-31 22:00:06,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 213. [2024-10-31 22:00:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 131 states have (on average 1.1221374045801527) internal successors, (147), 135 states have internal predecessors, (147), 47 states have call successors, (55), 27 states have call predecessors, (55), 35 states have return successors, (94), 50 states have call predecessors, (94), 45 states have call successors, (94) [2024-10-31 22:00:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 296 transitions. [2024-10-31 22:00:06,491 INFO L240 hiAutomatonCegarLoop]: Abstraction has 213 states and 296 transitions. [2024-10-31 22:00:06,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:00:06,492 INFO L425 stractBuchiCegarLoop]: Abstraction has 213 states and 296 transitions. [2024-10-31 22:00:06,492 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-10-31 22:00:06,492 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 213 states and 296 transitions. [2024-10-31 22:00:06,495 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:06,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:06,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:06,496 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 7, 6, 6, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:00:06,497 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2024-10-31 22:00:06,497 INFO L745 eck$LassoCheckResult]: Stem: 2710#$Ultimate##0 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(16, 2);call #Ultimate.allocInit(12, 3); 2711#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 2712#L29 assume !(main_~x~0#1 < 1); 2713#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 2719#$Ultimate##0 ~n := #in~n; 2767#L17 assume !(~n < 1); 2749#L19 assume !(1 == ~n); 2746#L22 call #t~ret4 := fibonacci(~n - 1);< 2747#$Ultimate##0 ~n := #in~n; 2758#L17 assume !(~n < 1); 2759#L19 assume !(1 == ~n); 2745#L22 call #t~ret4 := fibonacci(~n - 1);< 2747#$Ultimate##0 ~n := #in~n; 2758#L17 assume !(~n < 1); 2759#L19 assume !(1 == ~n); 2745#L22 call #t~ret4 := fibonacci(~n - 1);< 2747#$Ultimate##0 ~n := #in~n; 2758#L17 assume !(~n < 1); 2759#L19 assume !(1 == ~n); 2745#L22 call #t~ret4 := fibonacci(~n - 1);< 2747#$Ultimate##0 ~n := #in~n; 2768#L17 assume !(~n < 1); 2818#L19 assume 1 == ~n;#res := 1; 2817#fibonacciFINAL assume true; 2814#fibonacciEXIT >#36#return; 2797#L22-1 call #t~ret5 := fibonacci(~n - 2);< 2798#$Ultimate##0 ~n := #in~n; 2810#L17 assume ~n < 1;#res := 0; 2808#fibonacciFINAL assume true; 2796#fibonacciEXIT >#38#return; 2794#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 2792#fibonacciFINAL assume true; 2790#fibonacciEXIT >#36#return; 2779#L22-1 call #t~ret5 := fibonacci(~n - 2);< 2775#$Ultimate##0 ~n := #in~n; 2787#L17 assume ~n < 1;#res := 0; 2786#fibonacciFINAL assume true; 2778#fibonacciEXIT >#38#return; 2780#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 2789#fibonacciFINAL assume true; 2744#fibonacciEXIT >#36#return; 2732#L22-1 call #t~ret5 := fibonacci(~n - 2);< 2740#$Ultimate##0 ~n := #in~n; 2863#L17 assume !(~n < 1); 2731#L19 assume !(1 == ~n); 2715#L22 call #t~ret4 := fibonacci(~n - 1);< 2856#$Ultimate##0 ~n := #in~n; 2857#L17 assume !(~n < 1); 2852#L19 assume !(1 == ~n); 2836#L22 call #t~ret4 := fibonacci(~n - 1);< 2837#$Ultimate##0 [2024-10-31 22:00:06,497 INFO L747 eck$LassoCheckResult]: Loop: 2837#$Ultimate##0 ~n := #in~n; 2851#L17 assume !(~n < 1); 2850#L19 assume !(1 == ~n); 2834#L22 call #t~ret4 := fibonacci(~n - 1);< 2837#$Ultimate##0 [2024-10-31 22:00:06,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:06,498 INFO L85 PathProgramCache]: Analyzing trace with hash -2146747624, now seen corresponding path program 3 times [2024-10-31 22:00:06,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:06,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359663817] [2024-10-31 22:00:06,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:06,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:06,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:00:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:06,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:06,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:00:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 79 proven. 6 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-10-31 22:00:06,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:06,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359663817] [2024-10-31 22:00:06,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359663817] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:06,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832013567] [2024-10-31 22:00:06,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-31 22:00:06,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:06,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:06,755 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:06,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2024-10-31 22:00:06,814 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-31 22:00:06,814 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:06,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-31 22:00:06,817 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:06,883 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 82 proven. 11 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-31 22:00:06,883 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:07,252 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 82 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-10-31 22:00:07,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832013567] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:07,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:07,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 14 [2024-10-31 22:00:07,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892903617] [2024-10-31 22:00:07,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:07,254 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:07,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,255 INFO L85 PathProgramCache]: Analyzing trace with hash 927648, now seen corresponding path program 2 times [2024-10-31 22:00:07,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:07,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055664329] [2024-10-31 22:00:07,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:07,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,259 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:07,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:07,311 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:07,311 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:07,311 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:07,311 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:07,311 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:07,312 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,312 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:07,312 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:07,312 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration5_Loop [2024-10-31 22:00:07,312 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:07,312 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:07,313 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,317 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,327 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,329 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,332 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,371 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:07,371 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:07,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,374 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Waiting until timeout for monitored process [2024-10-31 22:00:07,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:07,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,396 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:07,396 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#res=0} Honda state: {fibonacci_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:07,414 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (37)] Ended with exit code 0 [2024-10-31 22:00:07,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,415 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,417 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Waiting until timeout for monitored process [2024-10-31 22:00:07,419 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:07,419 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,458 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (38)] Ended with exit code 0 [2024-10-31 22:00:07,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,461 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Waiting until timeout for monitored process [2024-10-31 22:00:07,464 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:07,464 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:07,507 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:07,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (39)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,512 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:07,512 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:07,512 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:07,513 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:07,513 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:07,513 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,513 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:07,513 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:07,513 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration5_Loop [2024-10-31 22:00:07,513 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:07,513 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:07,514 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,519 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,522 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,531 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,534 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:07,575 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:07,576 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:07,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,579 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Waiting until timeout for monitored process [2024-10-31 22:00:07,582 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 [2024-10-31 22:00:07,596 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:07,596 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:07,597 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:07,597 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:07,597 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:07,598 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:07,598 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:07,602 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:07,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (40)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,625 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Waiting until timeout for monitored process [2024-10-31 22:00:07,627 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSESNumber of strict supporting invariants: 0Number of non-strict supporting invariants: 1Consider only non-deceasing supporting invariants: trueSimplify termination arguments: trueSimplify supporting invariants: trueOverapproximate stem: false [2024-10-31 22:00:07,641 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:07,641 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:07,642 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:07,642 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:07,642 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:07,642 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:07,643 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:07,648 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:07,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (41)] Ended with exit code 0 [2024-10-31 22:00:07,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,670 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Waiting until timeout for monitored process [2024-10-31 22:00:07,672 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 [2024-10-31 22:00:07,687 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:07,687 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:07,687 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:07,687 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:07,687 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:07,688 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:07,688 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:07,691 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:07,695 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:07,695 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:07,698 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:07,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Waiting until timeout for monitored process [2024-10-31 22:00:07,700 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:07,701 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:07,701 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:07,701 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibonacci_#in~n) = 1*fibonacci_#in~n Supporting invariants [] [2024-10-31 22:00:07,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (42)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:07,720 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:07,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:07,813 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-31 22:00:07,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,167 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,197 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 [2024-10-31 22:00:08,197 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:08,271 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 235 states and 322 transitions. Complement of second has 17 states. [2024-10-31 22:00:08,272 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 [2024-10-31 22:00:08,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:08,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-10-31 22:00:08,273 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 50 letters. Loop has 4 letters. [2024-10-31 22:00:08,273 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:08,273 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:08,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,353 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:08,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:08,769 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 [2024-10-31 22:00:08,769 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:08,854 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 235 states and 322 transitions. Complement of second has 17 states. [2024-10-31 22:00:08,855 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 [2024-10-31 22:00:08,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:08,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 14 transitions. [2024-10-31 22:00:08,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 14 transitions. Stem has 50 letters. Loop has 4 letters. [2024-10-31 22:00:08,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:08,857 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:08,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:08,947 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-10-31 22:00:08,968 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (43)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,313 INFO L255 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-31 22:00:09,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-31 22:00:09,344 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 [2024-10-31 22:00:09,344 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87 Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:09,457 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 213 states and 296 transitions. cyclomatic complexity: 87. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Result 286 states and 375 transitions. Complement of second has 19 states. [2024-10-31 22:00:09,457 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 [2024-10-31 22:00:09,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-31 22:00:09,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2024-10-31 22:00:09,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 50 letters. Loop has 4 letters. [2024-10-31 22:00:09,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 54 letters. Loop has 4 letters. [2024-10-31 22:00:09,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,460 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 22 transitions. Stem has 50 letters. Loop has 8 letters. [2024-10-31 22:00:09,461 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:09,461 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 286 states and 375 transitions. [2024-10-31 22:00:09,465 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:09,469 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 286 states to 231 states and 318 transitions. [2024-10-31 22:00:09,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 106 [2024-10-31 22:00:09,470 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 109 [2024-10-31 22:00:09,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 231 states and 318 transitions. [2024-10-31 22:00:09,470 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:09,470 INFO L218 hiAutomatonCegarLoop]: Abstraction has 231 states and 318 transitions. [2024-10-31 22:00:09,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states and 318 transitions. [2024-10-31 22:00:09,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2024-10-31 22:00:09,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 142 states have (on average 1.1126760563380282) internal successors, (158), 146 states have internal predecessors, (158), 48 states have call successors, (56), 28 states have call predecessors, (56), 35 states have return successors, (97), 50 states have call predecessors, (97), 46 states have call successors, (97) [2024-10-31 22:00:09,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 311 transitions. [2024-10-31 22:00:09,499 INFO L240 hiAutomatonCegarLoop]: Abstraction has 225 states and 311 transitions. [2024-10-31 22:00:09,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:09,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-31 22:00:09,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-31 22:00:09,500 INFO L87 Difference]: Start difference. First operand 225 states and 311 transitions. Second operand has 14 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (10), 2 states have call predecessors, (10), 5 states have return successors, (8), 4 states have call predecessors, (8), 6 states have call successors, (8) [2024-10-31 22:00:09,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:09,599 INFO L93 Difference]: Finished difference Result 239 states and 306 transitions. [2024-10-31 22:00:09,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 239 states and 306 transitions. [2024-10-31 22:00:09,606 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:09,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 239 states to 212 states and 261 transitions. [2024-10-31 22:00:09,611 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2024-10-31 22:00:09,611 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2024-10-31 22:00:09,611 INFO L73 IsDeterministic]: Start isDeterministic. Operand 212 states and 261 transitions. [2024-10-31 22:00:09,612 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:09,612 INFO L218 hiAutomatonCegarLoop]: Abstraction has 212 states and 261 transitions. [2024-10-31 22:00:09,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states and 261 transitions. [2024-10-31 22:00:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 205. [2024-10-31 22:00:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 131 states have (on average 1.1068702290076335) internal successors, (145), 137 states have internal predecessors, (145), 41 states have call successors, (41), 26 states have call predecessors, (41), 33 states have return successors, (66), 41 states have call predecessors, (66), 38 states have call successors, (66) [2024-10-31 22:00:09,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 252 transitions. [2024-10-31 22:00:09,632 INFO L240 hiAutomatonCegarLoop]: Abstraction has 205 states and 252 transitions. [2024-10-31 22:00:09,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-31 22:00:09,633 INFO L425 stractBuchiCegarLoop]: Abstraction has 205 states and 252 transitions. [2024-10-31 22:00:09,633 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-10-31 22:00:09,633 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 205 states and 252 transitions. [2024-10-31 22:00:09,635 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:09,635 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:09,635 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:09,639 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [9, 8, 6, 5, 5, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2024-10-31 22:00:09,639 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [7, 6, 5, 4, 4, 3, 3, 2, 2, 2, 1] [2024-10-31 22:00:09,639 INFO L745 eck$LassoCheckResult]: Stem: 5091#$Ultimate##0 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(16, 2);call #Ultimate.allocInit(12, 3); 5092#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 5093#L29 assume !(main_~x~0#1 < 1); 5094#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 5099#$Ultimate##0 ~n := #in~n; 5167#L17 assume !(~n < 1); 5147#L19 assume !(1 == ~n); 5131#L22 call #t~ret4 := fibonacci(~n - 1);< 5140#$Ultimate##0 ~n := #in~n; 5173#L17 assume !(~n < 1); 5168#L19 assume !(1 == ~n); 5130#L22 call #t~ret4 := fibonacci(~n - 1);< 5133#$Ultimate##0 ~n := #in~n; 5205#L17 assume !(~n < 1); 5204#L19 assume !(1 == ~n); 5129#L22 call #t~ret4 := fibonacci(~n - 1);< 5133#$Ultimate##0 ~n := #in~n; 5205#L17 assume !(~n < 1); 5204#L19 assume !(1 == ~n); 5129#L22 call #t~ret4 := fibonacci(~n - 1);< 5133#$Ultimate##0 ~n := #in~n; 5206#L17 assume !(~n < 1); 5209#L19 assume 1 == ~n;#res := 1; 5208#fibonacciFINAL assume true; 5203#fibonacciEXIT >#36#return; 5200#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5201#$Ultimate##0 ~n := #in~n; 5207#L17 assume ~n < 1;#res := 0; 5202#fibonacciFINAL assume true; 5199#fibonacciEXIT >#38#return; 5198#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5196#fibonacciFINAL assume true; 5194#fibonacciEXIT >#36#return; 5142#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5145#$Ultimate##0 ~n := #in~n; 5153#L17 assume !(~n < 1); 5150#L19 assume 1 == ~n;#res := 1; 5107#fibonacciFINAL assume true; 5141#fibonacciEXIT >#38#return; 5132#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5134#fibonacciFINAL assume true; 5128#fibonacciEXIT >#36#return; 5115#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5114#$Ultimate##0 ~n := #in~n; 5117#L17 assume !(~n < 1); 5160#L19 assume !(1 == ~n); 5081#L22 call #t~ret4 := fibonacci(~n - 1);< 5159#$Ultimate##0 ~n := #in~n; 5078#L17 assume !(~n < 1); 5079#L19 assume !(1 == ~n); 5067#L22 [2024-10-31 22:00:09,640 INFO L747 eck$LassoCheckResult]: Loop: 5067#L22 call #t~ret4 := fibonacci(~n - 1);< 5085#$Ultimate##0 ~n := #in~n; 5103#L17 assume !(~n < 1); 5259#L19 assume !(1 == ~n); 5068#L22 call #t~ret4 := fibonacci(~n - 1);< 5085#$Ultimate##0 ~n := #in~n; 5103#L17 assume !(~n < 1); 5259#L19 assume !(1 == ~n); 5068#L22 call #t~ret4 := fibonacci(~n - 1);< 5085#$Ultimate##0 ~n := #in~n; 5104#L17 assume !(~n < 1); 5268#L19 assume 1 == ~n;#res := 1; 5266#fibonacciFINAL assume true; 5265#fibonacciEXIT >#36#return; 5066#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5069#$Ultimate##0 ~n := #in~n; 5269#L17 assume ~n < 1;#res := 0; 5267#fibonacciFINAL assume true; 5264#fibonacciEXIT >#38#return; 5262#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5261#fibonacciFINAL assume true; 5257#fibonacciEXIT >#36#return; 5254#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5256#$Ultimate##0 ~n := #in~n; 5260#L17 assume !(~n < 1); 5258#L19 assume 1 == ~n;#res := 1; 5110#fibonacciFINAL assume true; 5253#fibonacciEXIT >#38#return; 5252#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 5251#fibonacciFINAL assume true; 5250#fibonacciEXIT >#36#return; 5082#L22-1 call #t~ret5 := fibonacci(~n - 2);< 5112#$Ultimate##0 ~n := #in~n; 5111#L17 assume !(~n < 1); 5109#L19 assume !(1 == ~n); 5076#L22 call #t~ret4 := fibonacci(~n - 1);< 5084#$Ultimate##0 ~n := #in~n; 5078#L17 assume !(~n < 1); 5079#L19 assume !(1 == ~n); 5067#L22 [2024-10-31 22:00:09,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:09,640 INFO L85 PathProgramCache]: Analyzing trace with hash 514214913, now seen corresponding path program 4 times [2024-10-31 22:00:09,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:09,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196230508] [2024-10-31 22:00:09,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:09,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:09,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-31 22:00:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:10,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:10,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:00:10,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,076 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 55 proven. 39 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:10,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196230508] [2024-10-31 22:00:10,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196230508] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:10,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397368947] [2024-10-31 22:00:10,077 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-31 22:00:10,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:10,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:10,080 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:10,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2024-10-31 22:00:10,133 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-31 22:00:10,133 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:10,134 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:00:10,136 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 55 proven. 39 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-31 22:00:10,202 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:10,580 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 55 proven. 46 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-10-31 22:00:10,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397368947] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:10,580 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:10,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 15 [2024-10-31 22:00:10,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186788123] [2024-10-31 22:00:10,580 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:10,581 INFO L750 eck$LassoCheckResult]: stem already infeasible [2024-10-31 22:00:10,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:10,585 INFO L85 PathProgramCache]: Analyzing trace with hash -992836657, now seen corresponding path program 2 times [2024-10-31 22:00:10,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:10,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255780478] [2024-10-31 22:00:10,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:10,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:10,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-10-31 22:00:10,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:00:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 28 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-31 22:00:10,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:10,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255780478] [2024-10-31 22:00:10,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255780478] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:10,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882746074] [2024-10-31 22:00:10,855 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-31 22:00:10,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:10,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:10,858 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:10,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2024-10-31 22:00:10,911 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-31 22:00:10,911 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:10,912 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-31 22:00:10,914 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:10,976 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 28 proven. 39 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-10-31 22:00:10,977 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 28 proven. 46 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-10-31 22:00:11,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882746074] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:11,374 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:11,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 11] total 15 [2024-10-31 22:00:11,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299709805] [2024-10-31 22:00:11,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:11,375 INFO L762 eck$LassoCheckResult]: loop already infeasible [2024-10-31 22:00:11,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:00:11,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-31 22:00:11,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-10-31 22:00:11,376 INFO L87 Difference]: Start difference. First operand 205 states and 252 transitions. cyclomatic complexity: 51 Second operand has 16 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 11 states have call successors, (11), 3 states have call predecessors, (11), 4 states have return successors, (11), 5 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-31 22:00:11,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-31 22:00:11,536 INFO L93 Difference]: Finished difference Result 289 states and 384 transitions. [2024-10-31 22:00:11,536 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 289 states and 384 transitions. [2024-10-31 22:00:11,539 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:11,543 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 289 states to 277 states and 366 transitions. [2024-10-31 22:00:11,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 113 [2024-10-31 22:00:11,544 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 123 [2024-10-31 22:00:11,544 INFO L73 IsDeterministic]: Start isDeterministic. Operand 277 states and 366 transitions. [2024-10-31 22:00:11,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2024-10-31 22:00:11,544 INFO L218 hiAutomatonCegarLoop]: Abstraction has 277 states and 366 transitions. [2024-10-31 22:00:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states and 366 transitions. [2024-10-31 22:00:11,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 249. [2024-10-31 22:00:11,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 159 states have (on average 1.119496855345912) internal successors, (178), 161 states have internal predecessors, (178), 52 states have call successors, (52), 34 states have call predecessors, (52), 38 states have return successors, (94), 53 states have call predecessors, (94), 49 states have call successors, (94) [2024-10-31 22:00:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 324 transitions. [2024-10-31 22:00:11,555 INFO L240 hiAutomatonCegarLoop]: Abstraction has 249 states and 324 transitions. [2024-10-31 22:00:11,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-31 22:00:11,556 INFO L425 stractBuchiCegarLoop]: Abstraction has 249 states and 324 transitions. [2024-10-31 22:00:11,556 INFO L332 stractBuchiCegarLoop]: ======== Iteration 7 ============ [2024-10-31 22:00:11,556 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 324 transitions. [2024-10-31 22:00:11,558 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 14 [2024-10-31 22:00:11,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-10-31 22:00:11,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-10-31 22:00:11,560 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [12, 10, 9, 7, 6, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1] [2024-10-31 22:00:11,561 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [11, 9, 9, 6, 6, 5, 5, 4, 4, 3, 2] [2024-10-31 22:00:11,561 INFO L745 eck$LassoCheckResult]: Stem: 6271#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(0, 1, 1, 1);call #Ultimate.allocInit(16, 2);call #Ultimate.allocInit(12, 3); 6272#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~x~0#1, main_~result~0#1;havoc main_#t~nondet6#1;main_~x~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 6273#L29 assume !(main_~x~0#1 < 1); 6274#L31 call main_#t~ret7#1 := fibonacci(main_~x~0#1);< 6280#$Ultimate##0 ~n := #in~n; 6319#L17 assume !(~n < 1); 6318#L19 assume !(1 == ~n); 6312#L22 call #t~ret4 := fibonacci(~n - 1);< 6317#$Ultimate##0 ~n := #in~n; 6397#L17 assume !(~n < 1); 6320#L19 assume !(1 == ~n); 6311#L22 call #t~ret4 := fibonacci(~n - 1);< 6314#$Ultimate##0 ~n := #in~n; 6396#L17 assume !(~n < 1); 6393#L19 assume !(1 == ~n); 6310#L22 call #t~ret4 := fibonacci(~n - 1);< 6314#$Ultimate##0 ~n := #in~n; 6396#L17 assume !(~n < 1); 6393#L19 assume !(1 == ~n); 6310#L22 call #t~ret4 := fibonacci(~n - 1);< 6314#$Ultimate##0 ~n := #in~n; 6399#L17 assume !(~n < 1); 6406#L19 assume 1 == ~n;#res := 1; 6404#fibonacciFINAL assume true; 6403#fibonacciEXIT >#36#return; 6401#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6402#$Ultimate##0 ~n := #in~n; 6407#L17 assume ~n < 1;#res := 0; 6405#fibonacciFINAL assume true; 6400#fibonacciEXIT >#38#return; 6398#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6395#fibonacciFINAL assume true; 6391#fibonacciEXIT >#36#return; 6344#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6345#$Ultimate##0 ~n := #in~n; 6392#L17 assume !(~n < 1); 6388#L19 assume 1 == ~n;#res := 1; 6297#fibonacciFINAL assume true; 6343#fibonacciEXIT >#38#return; 6336#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6333#fibonacciFINAL assume true; 6329#fibonacciEXIT >#36#return; 6328#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6331#$Ultimate##0 ~n := #in~n; 6412#L17 assume !(~n < 1); 6410#L19 assume !(1 == ~n); 6347#L22 call #t~ret4 := fibonacci(~n - 1);< 6349#$Ultimate##0 ~n := #in~n; 6425#L17 assume !(~n < 1); 6409#L19 assume 1 == ~n;#res := 1; 6408#fibonacciFINAL assume true; 6346#fibonacciEXIT >#36#return; 6340#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6342#$Ultimate##0 ~n := #in~n; 6357#L17 assume ~n < 1;#res := 0; 6351#fibonacciFINAL assume true; 6338#fibonacciEXIT >#38#return; 6335#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6332#fibonacciFINAL assume true; 6327#fibonacciEXIT >#38#return; 6313#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6316#fibonacciFINAL assume true; 6309#fibonacciEXIT >#36#return; 6300#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6305#$Ultimate##0 ~n := #in~n; 6299#L17 assume !(~n < 1); 6302#L19 assume !(1 == ~n); 6264#L22 call #t~ret4 := fibonacci(~n - 1);< 6460#$Ultimate##0 ~n := #in~n; 6454#L17 assume !(~n < 1); 6455#L19 assume !(1 == ~n); 6263#L22 [2024-10-31 22:00:11,561 INFO L747 eck$LassoCheckResult]: Loop: 6263#L22 call #t~ret4 := fibonacci(~n - 1);< 6266#$Ultimate##0 ~n := #in~n; 6459#L17 assume !(~n < 1); 6284#L19 assume !(1 == ~n); 6282#L22 call #t~ret4 := fibonacci(~n - 1);< 6266#$Ultimate##0 ~n := #in~n; 6459#L17 assume !(~n < 1); 6284#L19 assume !(1 == ~n); 6282#L22 call #t~ret4 := fibonacci(~n - 1);< 6266#$Ultimate##0 ~n := #in~n; 6459#L17 assume !(~n < 1); 6284#L19 assume !(1 == ~n); 6282#L22 call #t~ret4 := fibonacci(~n - 1);< 6266#$Ultimate##0 ~n := #in~n; 6458#L17 assume !(~n < 1); 6281#L19 assume 1 == ~n;#res := 1; 6283#fibonacciFINAL assume true; 6489#fibonacciEXIT >#36#return; 6477#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6478#$Ultimate##0 ~n := #in~n; 6486#L17 assume ~n < 1;#res := 0; 6485#fibonacciFINAL assume true; 6476#fibonacciEXIT >#38#return; 6474#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6473#fibonacciFINAL assume true; 6472#fibonacciEXIT >#36#return; 6469#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6470#$Ultimate##0 ~n := #in~n; 6488#L17 assume !(~n < 1); 6487#L19 assume 1 == ~n;#res := 1; 6294#fibonacciFINAL assume true; 6468#fibonacciEXIT >#38#return; 6467#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6466#fibonacciFINAL assume true; 6465#fibonacciEXIT >#36#return; 6249#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6423#$Ultimate##0 ~n := #in~n; 6413#L17 assume !(~n < 1); 6293#L19 assume !(1 == ~n); 6259#L22 call #t~ret4 := fibonacci(~n - 1);< 6262#$Ultimate##0 ~n := #in~n; 6256#L17 assume !(~n < 1); 6258#L19 assume 1 == ~n;#res := 1; 6484#fibonacciFINAL assume true; 6480#fibonacciEXIT >#36#return; 6247#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6251#$Ultimate##0 ~n := #in~n; 6490#L17 assume ~n < 1;#res := 0; 6285#fibonacciFINAL assume true; 6267#fibonacciEXIT >#38#return; 6268#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6275#fibonacciFINAL assume true; 6481#fibonacciEXIT >#38#return; 6479#L22-2 #res := #t~ret4 + #t~ret5;havoc #t~ret4;havoc #t~ret5; 6475#fibonacciFINAL assume true; 6471#fibonacciEXIT >#36#return; 6248#L22-1 call #t~ret5 := fibonacci(~n - 2);< 6464#$Ultimate##0 ~n := #in~n; 6463#L17 assume !(~n < 1); 6461#L19 assume !(1 == ~n); 6257#L22 call #t~ret4 := fibonacci(~n - 1);< 6457#$Ultimate##0 ~n := #in~n; 6454#L17 assume !(~n < 1); 6455#L19 assume !(1 == ~n); 6263#L22 [2024-10-31 22:00:11,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,562 INFO L85 PathProgramCache]: Analyzing trace with hash -599563640, now seen corresponding path program 5 times [2024-10-31 22:00:11,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946474097] [2024-10-31 22:00:11,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:11,574 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:11,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:11,586 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:11,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,587 INFO L85 PathProgramCache]: Analyzing trace with hash 58710267, now seen corresponding path program 3 times [2024-10-31 22:00:11,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683166098] [2024-10-31 22:00:11,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:11,597 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-31 22:00:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-31 22:00:11,606 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-31 22:00:11,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:11,607 INFO L85 PathProgramCache]: Analyzing trace with hash -1817476222, now seen corresponding path program 6 times [2024-10-31 22:00:11,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:00:11,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10473209] [2024-10-31 22:00:11,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:00:11,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:00:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-31 22:00:11,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:11,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:00:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:00:12,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-31 22:00:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:12,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-31 22:00:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-10-31 22:00:12,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-31 22:00:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-31 22:00:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 267 proven. 348 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2024-10-31 22:00:12,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:00:12,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10473209] [2024-10-31 22:00:12,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10473209] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-31 22:00:12,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000425738] [2024-10-31 22:00:12,205 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-31 22:00:12,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-31 22:00:12,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:12,208 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-31 22:00:12,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2024-10-31 22:00:12,313 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 18 check-sat command(s) [2024-10-31 22:00:12,313 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-31 22:00:12,315 INFO L255 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-31 22:00:12,318 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:12,480 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 254 proven. 243 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2024-10-31 22:00:12,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-31 22:00:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1122 backedges. 255 proven. 249 refuted. 0 times theorem prover too weak. 618 trivial. 0 not checked. [2024-10-31 22:00:13,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000425738] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-31 22:00:13,114 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-31 22:00:13,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 16] total 28 [2024-10-31 22:00:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52865958] [2024-10-31 22:00:13,115 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-31 22:00:13,873 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:13,873 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:13,873 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:13,873 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:13,873 INFO L128 ssoRankerPreferences]: Use exernal solver: true [2024-10-31 22:00:13,873 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:13,874 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:13,874 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:13,874 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration7_Loop [2024-10-31 22:00:13,874 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:13,874 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:13,875 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:13,878 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:13,881 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:13,884 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:13,887 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:13,929 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:13,929 INFO L365 LassoAnalysis]: Checking for nontermination... [2024-10-31 22:00:13,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:13,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:13,932 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:13,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Waiting until timeout for monitored process [2024-10-31 22:00:13,935 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:13,935 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:13,952 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:13,952 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret4=0} Honda state: {fibonacci_#t~ret4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:13,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (47)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:13,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:13,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:13,974 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:13,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Waiting until timeout for monitored process [2024-10-31 22:00:13,976 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:13,976 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:13,992 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:13,992 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#res=0} Honda state: {fibonacci_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:14,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (48)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:14,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,012 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Waiting until timeout for monitored process [2024-10-31 22:00:14,016 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:14,016 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:14,034 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:14,034 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#t~ret5=0} Honda state: {fibonacci_#t~ret5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:14,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (49)] Ended with exit code 0 [2024-10-31 22:00:14,052 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,054 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Waiting until timeout for monitored process [2024-10-31 22:00:14,056 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:14,056 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:14,072 INFO L398 LassoAnalysis]: Proved nontermination for one component. [2024-10-31 22:00:14,073 INFO L401 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibonacci_#in~n=2} Honda state: {fibonacci_#in~n=2} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2024-10-31 22:00:14,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (50)] Ended with exit code 0 [2024-10-31 22:00:14,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,091 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,093 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Waiting until timeout for monitored process [2024-10-31 22:00:14,096 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2024-10-31 22:00:14,096 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:14,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (51)] Ended with exit code 0 [2024-10-31 22:00:14,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,133 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,134 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Waiting until timeout for monitored process [2024-10-31 22:00:14,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2024-10-31 22:00:14,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2024-10-31 22:00:14,153 INFO L405 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2024-10-31 22:00:14,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (52)] Ended with exit code 0 [2024-10-31 22:00:14,171 INFO L204 LassoAnalysis]: Preferences: [2024-10-31 22:00:14,172 INFO L125 ssoRankerPreferences]: Compute integeral hull: false [2024-10-31 22:00:14,172 INFO L126 ssoRankerPreferences]: Enable LassoPartitioneer: true [2024-10-31 22:00:14,172 INFO L127 ssoRankerPreferences]: Term annotations enabled: false [2024-10-31 22:00:14,172 INFO L128 ssoRankerPreferences]: Use exernal solver: false [2024-10-31 22:00:14,172 INFO L129 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,172 INFO L130 ssoRankerPreferences]: Dump SMT script to file: false [2024-10-31 22:00:14,172 INFO L131 ssoRankerPreferences]: Path of dumped script: [2024-10-31 22:00:14,173 INFO L132 ssoRankerPreferences]: Filename of dumped script: Fibonacci01-2.c_Iteration7_Loop [2024-10-31 22:00:14,173 INFO L133 ssoRankerPreferences]: MapElimAlgo: Frank [2024-10-31 22:00:14,173 INFO L241 LassoAnalysis]: Starting lasso preprocessing... [2024-10-31 22:00:14,173 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:14,176 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:14,180 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:14,182 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:14,185 INFO L118 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2024-10-31 22:00:14,226 INFO L259 LassoAnalysis]: Preprocessing complete. [2024-10-31 22:00:14,226 INFO L451 LassoAnalysis]: Using template 'affine'. [2024-10-31 22:00:14,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,228 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Waiting until timeout for monitored process [2024-10-31 22:00:14,231 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 [2024-10-31 22:00:14,245 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:14,246 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:14,246 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:14,246 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:14,246 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:14,247 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:14,247 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:14,251 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:14,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (53)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,274 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Waiting until timeout for monitored process [2024-10-31 22:00:14,277 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 [2024-10-31 22:00:14,289 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:14,289 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:14,289 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:14,289 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:14,290 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:14,290 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:14,291 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:14,293 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:14,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (54)] Forceful destruction successful, exit code 0 [2024-10-31 22:00:14,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,313 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Waiting until timeout for monitored process [2024-10-31 22:00:14,316 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 [2024-10-31 22:00:14,328 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:14,328 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:14,329 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:14,329 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:14,329 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:14,329 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:14,329 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:14,331 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:14,369 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (55)] Ended with exit code 0 [2024-10-31 22:00:14,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,371 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Waiting until timeout for monitored process [2024-10-31 22:00:14,372 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 [2024-10-31 22:00:14,387 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:14,387 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:14,388 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:14,388 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:14,388 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:14,388 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:14,389 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:14,391 INFO L488 LassoAnalysis]: Proving termination failed for this template and these settings. [2024-10-31 22:00:14,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (56)] Ended with exit code 0 [2024-10-31 22:00:14,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,419 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Waiting until timeout for monitored process [2024-10-31 22:00:14,420 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 [2024-10-31 22:00:14,432 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2024-10-31 22:00:14,432 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2024-10-31 22:00:14,432 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2024-10-31 22:00:14,433 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2024-10-31 22:00:14,433 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2024-10-31 22:00:14,434 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2024-10-31 22:00:14,434 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2024-10-31 22:00:14,436 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2024-10-31 22:00:14,440 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2024-10-31 22:00:14,441 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2024-10-31 22:00:14,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-10-31 22:00:14,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:00:14,443 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-10-31 22:00:14,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Waiting until timeout for monitored process [2024-10-31 22:00:14,445 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2024-10-31 22:00:14,446 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2024-10-31 22:00:14,446 INFO L474 LassoAnalysis]: Proved termination. [2024-10-31 22:00:14,446 INFO L476 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibonacci_~n) = 1*fibonacci_~n Supporting invariants [] [2024-10-31 22:00:14,465 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (57)] Ended with exit code 0 [2024-10-31 22:00:14,466 INFO L156 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2024-10-31 22:00:14,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:14,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:14,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:14,567 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:15,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-31 22:00:15,223 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:15,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_934ccfce-42a0-441f-b38f-4bad16618596/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (58)] Ended with exit code 0 [2024-10-31 22:00:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 39 proven. 129 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-31 22:00:15,636 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 12 loop predicates [2024-10-31 22:00:15,637 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79 Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:16,106 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79. Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Result 735 states and 952 transitions. Complement of second has 75 states. [2024-10-31 22:00:16,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 2 stem states 10 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:16,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:16,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 51 transitions. [2024-10-31 22:00:16,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 51 transitions. Stem has 71 letters. Loop has 64 letters. [2024-10-31 22:00:16,109 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:16,110 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:16,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:16,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:16,203 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:16,205 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:16,833 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-31 22:00:16,836 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 39 proven. 129 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-31 22:00:17,212 INFO L141 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 12 loop predicates [2024-10-31 22:00:17,213 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79 Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:17,752 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79. Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Result 739 states and 958 transitions. Complement of second has 79 states. [2024-10-31 22:00:17,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:17,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:17,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 54 transitions. [2024-10-31 22:00:17,755 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 54 transitions. Stem has 71 letters. Loop has 64 letters. [2024-10-31 22:00:17,756 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:17,756 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:17,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:17,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:17,847 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:17,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:18,469 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-31 22:00:18,472 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:18,901 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 39 proven. 129 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-31 22:00:18,901 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 12 loop predicates [2024-10-31 22:00:18,902 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79 Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:19,385 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79. Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Result 136 states and 141 transitions. Complement of second has 59 states. [2024-10-31 22:00:19,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 13 states 2 stem states 10 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:19,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:19,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 54 transitions. [2024-10-31 22:00:19,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 13 states and 54 transitions. Stem has 71 letters. Loop has 64 letters. [2024-10-31 22:00:19,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:19,390 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:19,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:19,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:19,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:20,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-31 22:00:20,114 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:20,484 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 39 proven. 129 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-31 22:00:20,485 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and with honda bouncer for loop.2 stem predicates 12 loop predicates [2024-10-31 22:00:20,485 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79 Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:21,059 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 249 states and 324 transitions. cyclomatic complexity: 79. Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Result 152 states and 162 transitions. Complement of second has 63 states. [2024-10-31 22:00:21,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 14 states 2 stem states 11 non-accepting loop states 1 accepting loop states [2024-10-31 22:00:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:21,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 61 transitions. [2024-10-31 22:00:21,062 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 14 states and 61 transitions. Stem has 71 letters. Loop has 64 letters. [2024-10-31 22:00:21,064 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2024-10-31 22:00:21,064 INFO L682 stractBuchiCegarLoop]: Bad chosen interpolant automaton: word not accepted [2024-10-31 22:00:21,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:00:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:21,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-10-31 22:00:21,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:21,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:00:21,736 INFO L255 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-10-31 22:00:21,739 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-31 22:00:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 39 proven. 129 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-10-31 22:00:22,105 INFO L141 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemin loopwithout honda bouncer for stem and without honda bouncer for loop.2 stem predicates 12 loop predicates [2024-10-31 22:00:22,106 INFO L104 BuchiDifferenceFKV]: Start buchiDifferenceFKV. First operand 249 states and 324 transitions. cyclomatic complexity: 79 Second operand has 14 states, 12 states have (on average 3.25) internal successors, (39), 11 states have internal predecessors, (39), 10 states have call successors, (15), 5 states have call predecessors, (15), 6 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2024-10-31 22:00:22,261 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,262 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,266 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,267 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,274 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,274 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,276 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,280 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,281 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,282 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,308 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,309 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,309 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,310 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,311 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,312 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,318 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,318 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,319 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,320 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,320 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,321 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,322 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,323 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,328 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,329 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,332 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,333 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,334 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,335 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,341 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,342 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,343 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,344 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,345 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,345 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,346 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,346 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,347 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,348 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,349 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,351 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,351 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,353 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,360 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,361 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,361 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,362 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,364 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,365 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,366 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,367 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,367 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,368 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,369 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,369 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,370 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,370 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,371 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,372 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,373 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,374 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,375 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,375 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,376 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,376 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,377 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,377 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,379 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,379 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,380 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,381 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,388 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,389 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,389 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,391 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,391 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,408 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,408 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,411 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,420 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,421 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,422 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,422 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,422 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,424 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,424 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,425 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,426 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,427 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,427 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,427 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,428 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,428 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,430 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,430 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,431 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,433 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,433 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,435 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,484 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,485 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,487 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,489 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,490 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,490 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,491 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,491 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,492 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,493 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,493 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,495 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,496 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,496 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,497 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,497 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,498 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,499 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,500 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,501 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,501 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,502 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,502 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,502 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,503 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,504 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,504 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,506 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,507 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,508 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,508 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,508 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,509 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,509 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,510 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,512 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,513 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,513 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,514 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,522 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,522 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,524 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,526 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,534 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,534 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,547 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,550 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,551 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,552 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,552 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,553 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,554 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,556 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,568 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,568 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,574 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,575 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,576 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,576 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,577 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,577 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,581 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,583 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,583 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,584 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,585 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,586 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,588 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,589 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,600 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,600 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,605 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,605 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,606 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,606 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,608 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,608 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,613 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,614 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,616 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,617 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,618 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,619 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,620 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,620 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,620 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,621 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,622 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,622 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,622 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,625 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,626 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,630 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,633 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,634 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,634 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,635 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,635 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,636 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,636 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,638 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,639 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,639 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,640 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,641 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,641 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,642 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,643 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,644 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,644 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,645 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,646 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,648 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,659 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,660 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,661 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,662 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,662 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,663 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,665 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,667 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,669 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,670 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,764 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,765 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,766 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,766 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,767 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,767 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,768 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,768 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,790 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,791 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,791 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,792 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,792 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,793 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,794 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,800 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,856 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,858 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,862 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,885 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,887 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,888 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,890 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,903 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,906 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,908 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,908 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,909 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,910 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:22,912 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:22,914 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,006 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,007 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,009 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,012 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,015 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,015 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,181 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,524 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,525 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,526 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,527 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,527 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,528 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,528 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,529 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,529 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,531 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,531 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,532 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,533 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,533 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,533 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,534 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,534 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,536 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,536 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,538 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,538 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,538 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,539 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,539 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,541 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,541 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,542 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,542 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,542 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,543 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,543 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,544 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,544 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,545 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,545 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,545 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,551 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,551 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,552 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,552 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,553 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,553 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,602 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,602 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,603 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,603 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,604 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,605 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,606 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,606 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,607 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,607 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,607 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,609 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,610 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,610 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,610 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,611 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,612 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,613 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,613 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,613 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,614 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,614 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,617 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,617 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,617 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,618 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,618 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,621 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,622 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,622 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,623 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,624 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,625 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,625 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,625 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,626 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,626 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,627 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,628 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,628 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,628 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,629 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,629 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,629 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,630 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,630 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,631 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,631 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,632 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,632 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,632 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,633 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,633 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,634 WARN L278 uchiComplementFKVNwa]: big16 [2024-10-31 22:00:23,634 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,635 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,635 WARN L278 uchiComplementFKVNwa]: big8 [2024-10-31 22:00:23,636 WARN L278 uchiComplementFKVNwa]: big8