./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0d7907681604b1ce9d21af31806cc60e045b313d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 03:06:06,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:06:06,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:06:06,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:06:06,934 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:06:06,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:06:06,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:06:06,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:06:06,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:06:06,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:06:06,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:06:06,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:06:06,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:06:06,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:06:06,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:06:06,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:06:06,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:06:06,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:06:06,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:06:06,953 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:06:06,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:06:06,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:06:06,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:06:06,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:06:06,961 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:06:06,961 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:06:06,962 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:06:06,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:06:06,963 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:06:06,964 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:06:06,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:06:06,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:06:06,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:06:06,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:06:06,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:06:06,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:06:06,970 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:06:06,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:06:06,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:06:06,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:06:06,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:06:06,973 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:06:06,990 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:06:06,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:06:06,992 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:06:06,992 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:06:06,992 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:06:06,993 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:06:06,993 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:06:06,993 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:06:06,994 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:06:06,994 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:06:06,994 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:06:06,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:06:06,995 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:06:06,995 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:06:06,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:06:06,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:06:06,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:06:06,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:06:06,996 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:06:06,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:06:06,997 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:06:06,997 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:06:06,998 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:06:06,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:06:06,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:06:06,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:06:06,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:06:06,999 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:06:06,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:06:07,000 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:06:07,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:06:07,000 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:06:07,001 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:06:07,002 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d7907681604b1ce9d21af31806cc60e045b313d [2020-07-29 03:06:07,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:06:07,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:06:07,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:06:07,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:06:07,332 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:06:07,333 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2020-07-29 03:06:07,403 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7453c4f/796cc30fd10d4dafb872be7dfeffa1d9/FLAG751dfa968 [2020-07-29 03:06:07,879 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:06:07,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-1.c [2020-07-29 03:06:07,888 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7453c4f/796cc30fd10d4dafb872be7dfeffa1d9/FLAG751dfa968 [2020-07-29 03:06:08,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac7453c4f/796cc30fd10d4dafb872be7dfeffa1d9 [2020-07-29 03:06:08,241 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:06:08,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:06:08,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:06:08,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:06:08,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:06:08,251 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37292b49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08, skipping insertion in model container [2020-07-29 03:06:08,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:06:08,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:06:08,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:06:08,452 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:06:08,470 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:06:08,485 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:06:08,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08 WrapperNode [2020-07-29 03:06:08,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:06:08,487 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:06:08,487 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:06:08,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:06:08,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,521 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:06:08,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:06:08,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:06:08,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:06:08,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,590 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... [2020-07-29 03:06:08,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:06:08,597 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:06:08,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:06:08,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:06:08,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:08,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:06:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:06:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-29 03:06:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-29 03:06:08,663 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-29 03:06:08,663 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-29 03:06:08,908 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:06:08,908 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 03:06:08,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:08 BoogieIcfgContainer [2020-07-29 03:06:08,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:06:08,913 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:06:08,913 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:06:08,917 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:06:08,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:08,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:06:08" (1/3) ... [2020-07-29 03:06:08,922 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c774e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:06:08, skipping insertion in model container [2020-07-29 03:06:08,922 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:08,922 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:08" (2/3) ... [2020-07-29 03:06:08,928 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c774e57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:06:08, skipping insertion in model container [2020-07-29 03:06:08,928 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:08,928 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:08" (3/3) ... [2020-07-29 03:06:08,930 INFO L371 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2-1.c [2020-07-29 03:06:09,032 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:06:09,032 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:06:09,032 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:06:09,033 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:06:09,033 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:06:09,033 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:06:09,033 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:06:09,033 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:06:09,048 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:09,082 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:09,083 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:09,083 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:09,088 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 03:06:09,088 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:06:09,088 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:06:09,089 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:09,095 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:09,096 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:09,096 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:09,096 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 03:06:09,096 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:06:09,103 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret4, main_~x~0, main_~result~0;main_~x~0 := 2; 16#L37true call main_#t~ret4 := fibo1(main_~x~0);< 24#fibo1ENTRYtrue [2020-07-29 03:06:09,104 INFO L796 eck$LassoCheckResult]: Loop: 24#fibo1ENTRYtrue ~n := #in~n; 12#L8true assume !(~n < 1); 4#L10true assume !(1 == ~n); 18#L13true call #t~ret0 := fibo2(~n - 1);< 10#fibo2ENTRYtrue ~n := #in~n; 27#L18true assume !(~n < 1); 25#L20true assume !(1 == ~n); 3#L23true call #t~ret2 := fibo1(~n - 1);< 24#fibo1ENTRYtrue [2020-07-29 03:06:09,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:09,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1034, now seen corresponding path program 1 times [2020-07-29 03:06:09,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:09,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822132966] [2020-07-29 03:06:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:09,187 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:09,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:09,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:09,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:06:09,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:09,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1816359656, now seen corresponding path program 1 times [2020-07-29 03:06:09,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:09,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089550802] [2020-07-29 03:06:09,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:09,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:09,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:09,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:09,237 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:09,240 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:06:09,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:09,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1268294159, now seen corresponding path program 1 times [2020-07-29 03:06:09,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:09,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517991956] [2020-07-29 03:06:09,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:09,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:09,478 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} havoc main_#res;havoc main_#t~ret4, main_~x~0, main_~result~0;main_~x~0 := 2; {35#(<= ULTIMATE.start_main_~x~0 2)} is VALID [2020-07-29 03:06:09,480 INFO L263 TraceCheckUtils]: 1: Hoare triple {35#(<= ULTIMATE.start_main_~x~0 2)} call main_#t~ret4 := fibo1(main_~x~0); {36#(<= |fibo1_#in~n| 2)} is VALID [2020-07-29 03:06:09,481 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#(<= |fibo1_#in~n| 2)} ~n := #in~n; {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:09,482 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#(<= fibo1_~n 2)} assume !(~n < 1); {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:09,484 INFO L280 TraceCheckUtils]: 4: Hoare triple {37#(<= fibo1_~n 2)} assume !(1 == ~n); {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:09,486 INFO L263 TraceCheckUtils]: 5: Hoare triple {37#(<= fibo1_~n 2)} call #t~ret0 := fibo2(~n - 1); {38#(<= |fibo2_#in~n| 1)} is VALID [2020-07-29 03:06:09,488 INFO L280 TraceCheckUtils]: 6: Hoare triple {38#(<= |fibo2_#in~n| 1)} ~n := #in~n; {39#(<= fibo2_~n 1)} is VALID [2020-07-29 03:06:09,489 INFO L280 TraceCheckUtils]: 7: Hoare triple {39#(<= fibo2_~n 1)} assume !(~n < 1); {40#(and (< 0 fibo2_~n) (<= fibo2_~n 1))} is VALID [2020-07-29 03:06:09,490 INFO L280 TraceCheckUtils]: 8: Hoare triple {40#(and (< 0 fibo2_~n) (<= fibo2_~n 1))} assume !(1 == ~n); {34#false} is VALID [2020-07-29 03:06:09,491 INFO L263 TraceCheckUtils]: 9: Hoare triple {34#false} call #t~ret2 := fibo1(~n - 1); {34#false} is VALID [2020-07-29 03:06:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 03:06:09,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517991956] [2020-07-29 03:06:09,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:06:09,496 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-29 03:06:09,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728301631] [2020-07-29 03:06:09,733 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:06:09,734 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:06:09,734 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:06:09,734 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:06:09,735 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 03:06:09,735 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:09,735 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:06:09,735 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:06:09,736 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-1.c_Iteration1_Loop [2020-07-29 03:06:09,736 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:06:09,736 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:06:09,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,770 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,779 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,789 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,798 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:09,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,023 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:06:10,024 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,033 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,033 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:10,049 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,050 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#res=0} Honda state: {fibo2_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,099 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,099 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:10,103 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,103 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#res=0} Honda state: {fibo1_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,135 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,135 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:10,138 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,138 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret2=0} Honda state: {fibo2_#t~ret2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,179 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,179 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:10,183 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,183 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_#t~ret3=0} Honda state: {fibo2_#t~ret3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,220 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,220 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:10,224 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,225 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo2_~n=0} Honda state: {fibo2_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,262 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,263 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,268 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,268 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_~n=0} Honda state: {fibo1_~n=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,316 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,317 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,324 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,324 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret1=0} Honda state: {fibo1_#t~ret1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,376 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,377 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:10,382 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {fibo1_#t~ret0=0} Honda state: {fibo1_#t~ret0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:10,441 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,492 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 03:06:10,492 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,586 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 03:06:10,591 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:06:10,591 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:06:10,591 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:06:10,591 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:06:10,591 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 03:06:10,592 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,592 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:06:10,592 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:06:10,592 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-1.c_Iteration1_Loop [2020-07-29 03:06:10,592 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:06:10,592 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:06:10,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,619 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,625 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,631 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,637 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,657 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 03:06:10,866 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:06:10,872 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,886 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:10,889 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:10,890 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:10,891 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:10,891 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:10,891 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:10,894 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:10,895 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,898 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:10,946 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:10,948 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:10,948 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:10,948 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:10,949 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:10,949 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:10,950 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:10,950 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:10,952 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:11,000 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:11,003 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,003 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,003 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,004 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,004 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,006 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,006 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,010 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:11,052 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,054 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,054 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,055 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,055 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,055 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,057 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,057 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:11,059 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,106 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:11,108 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,108 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,108 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,109 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,109 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,110 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,110 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:11,112 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,135 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:11,136 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,137 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,137 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,137 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,137 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,138 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,138 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:11,141 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,167 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:11,169 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,169 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,169 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,169 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,169 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,170 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,171 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:11,173 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:11,220 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 03:06:11,223 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:11,223 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:11,223 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:11,223 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:11,224 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:11,225 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:11,225 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,229 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 03:06:11,248 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 03:06:11,249 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 03:06:11,258 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 03:06:11,259 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 03:06:11,259 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 03:06:11,260 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(fibo1_#in~n) = 1*fibo1_#in~n Supporting invariants [] Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,300 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 03:06:11,303 INFO L393 LassoCheck]: Loop: "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret0 := fibo2(~n - 1);"< "~n := #in~n;" "assume !(~n < 1);" "assume !(1 == ~n);" "call #t~ret2 := fibo1(~n - 1);"< [2020-07-29 03:06:11,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 03:06:11,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:06:11,377 INFO L280 TraceCheckUtils]: 0: Hoare triple {41#unseeded} havoc main_#res;havoc main_#t~ret4, main_~x~0, main_~result~0;main_~x~0 := 2; {41#unseeded} is VALID [2020-07-29 03:06:11,379 INFO L263 TraceCheckUtils]: 1: Hoare triple {41#unseeded} call main_#t~ret4 := fibo1(main_~x~0); {41#unseeded} is VALID [2020-07-29 03:06:11,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 03:06:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:06:11,703 INFO L280 TraceCheckUtils]: 0: Hoare triple {44#(>= oldRank0 |fibo1_#in~n|)} ~n := #in~n; {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:11,704 INFO L280 TraceCheckUtils]: 1: Hoare triple {62#(<= fibo1_~n oldRank0)} assume !(~n < 1); {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:11,705 INFO L280 TraceCheckUtils]: 2: Hoare triple {62#(<= fibo1_~n oldRank0)} assume !(1 == ~n); {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:11,706 INFO L263 TraceCheckUtils]: 3: Hoare triple {62#(<= fibo1_~n oldRank0)} call #t~ret0 := fibo2(~n - 1); {72#(<= (+ |fibo2_#in~n| 1) oldRank0)} is VALID [2020-07-29 03:06:11,707 INFO L280 TraceCheckUtils]: 4: Hoare triple {72#(<= (+ |fibo2_#in~n| 1) oldRank0)} ~n := #in~n; {76#(<= (+ fibo2_~n 1) oldRank0)} is VALID [2020-07-29 03:06:11,708 INFO L280 TraceCheckUtils]: 5: Hoare triple {76#(<= (+ fibo2_~n 1) oldRank0)} assume !(~n < 1); {80#(and (<= (+ fibo2_~n 1) oldRank0) (<= 1 fibo2_~n))} is VALID [2020-07-29 03:06:11,709 INFO L280 TraceCheckUtils]: 6: Hoare triple {80#(and (<= (+ fibo2_~n 1) oldRank0) (<= 1 fibo2_~n))} assume !(1 == ~n); {80#(and (<= (+ fibo2_~n 1) oldRank0) (<= 1 fibo2_~n))} is VALID [2020-07-29 03:06:11,711 INFO L263 TraceCheckUtils]: 7: Hoare triple {80#(and (<= (+ fibo2_~n 1) oldRank0) (<= 1 fibo2_~n))} call #t~ret2 := fibo1(~n - 1); {54#(or (and (> oldRank0 |fibo1_#in~n|) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 03:06:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 03:06:11,723 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 03:06:11,747 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:06:11,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:11,753 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:11,760 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 5 loop predicates [2020-07-29 03:06:11,762 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 6 states. [2020-07-29 03:06:12,344 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 25 states.. Second operand 6 states. Result 83 states and 115 transitions. Complement of second has 24 states. [2020-07-29 03:06:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 7 states 1 stem states 5 non-accepting loop states 1 accepting loop states [2020-07-29 03:06:12,344 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:06:12,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:12,357 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:12,357 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:12,357 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:12,358 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 03:06:12,368 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-29 03:06:12,368 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:12,368 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:12,369 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 115 transitions. [2020-07-29 03:06:12,375 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:12,375 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:12,375 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:12,380 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 25 states. [2020-07-29 03:06:12,388 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:12,400 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 12 examples of accepted words. [2020-07-29 03:06:12,401 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 03:06:12,405 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-29 03:06:12,405 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 03:06:12,405 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 83 states and 115 transitions. cyclomatic complexity: 34 [2020-07-29 03:06:12,424 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 12 examples of accepted words. [2020-07-29 03:06:12,424 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,428 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,428 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,431 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,431 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,432 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,432 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 83 letters. Loop has 83 letters. [2020-07-29 03:06:12,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 83 letters. Loop has 83 letters. [2020-07-29 03:06:12,433 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,433 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 83 letters. Loop has 83 letters. [2020-07-29 03:06:12,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,434 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 25 letters. Loop has 25 letters. [2020-07-29 03:06:12,434 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 25 letters. Loop has 25 letters. [2020-07-29 03:06:12,439 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,439 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 25 letters. Loop has 25 letters. [2020-07-29 03:06:12,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 03:06:12,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 03:06:12,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,440 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 7 letters. Loop has 7 letters. [2020-07-29 03:06:12,440 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 5 letters. Loop has 8 letters. [2020-07-29 03:06:12,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 5 letters. Loop has 8 letters. [2020-07-29 03:06:12,441 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,441 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 5 letters. Loop has 8 letters. [2020-07-29 03:06:12,442 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,442 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 9 letters. Loop has 8 letters. [2020-07-29 03:06:12,443 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 9 letters. Loop has 8 letters. [2020-07-29 03:06:12,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 9 letters. Loop has 8 letters. [2020-07-29 03:06:12,444 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,448 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,448 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 4 letters. Loop has 8 letters. [2020-07-29 03:06:12,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 8 letters. [2020-07-29 03:06:12,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 4 letters. Loop has 8 letters. [2020-07-29 03:06:12,451 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,451 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,452 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,452 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,454 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,454 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 03:06:12,455 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,455 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 03:06:12,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 8 letters. Loop has 8 letters. [2020-07-29 03:06:12,456 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,456 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 6 letters. Loop has 8 letters. [2020-07-29 03:06:12,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 8 letters. [2020-07-29 03:06:12,458 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,458 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 6 letters. Loop has 8 letters. [2020-07-29 03:06:12,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 7 letters. Loop has 8 letters. [2020-07-29 03:06:12,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 7 letters. Loop has 8 letters. [2020-07-29 03:06:12,459 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,459 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 7 letters. Loop has 8 letters. [2020-07-29 03:06:12,460 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 3 letters. Loop has 8 letters. [2020-07-29 03:06:12,462 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,462 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 3 letters. Loop has 8 letters. [2020-07-29 03:06:12,463 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,463 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 3 letters. Loop has 8 letters. [2020-07-29 03:06:12,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:12,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:12,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:12,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 20 letters. Loop has 8 letters. [2020-07-29 03:06:12,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 20 letters. Loop has 8 letters. [2020-07-29 03:06:12,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 20 letters. Loop has 8 letters. [2020-07-29 03:06:12,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 21 letters. Loop has 8 letters. [2020-07-29 03:06:12,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 21 letters. Loop has 8 letters. [2020-07-29 03:06:12,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 21 letters. Loop has 8 letters. [2020-07-29 03:06:12,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 22 letters. Loop has 8 letters. [2020-07-29 03:06:12,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 22 letters. Loop has 8 letters. [2020-07-29 03:06:12,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 22 letters. Loop has 8 letters. [2020-07-29 03:06:12,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 15 letters. Loop has 8 letters. [2020-07-29 03:06:12,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 8 letters. [2020-07-29 03:06:12,476 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,476 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 15 letters. Loop has 8 letters. [2020-07-29 03:06:12,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 16 letters. Loop has 8 letters. [2020-07-29 03:06:12,477 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,477 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 16 letters. Loop has 8 letters. [2020-07-29 03:06:12,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 16 letters. Loop has 8 letters. [2020-07-29 03:06:12,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 17 letters. Loop has 8 letters. [2020-07-29 03:06:12,478 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,478 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 17 letters. Loop has 8 letters. [2020-07-29 03:06:12,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 17 letters. Loop has 8 letters. [2020-07-29 03:06:12,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 18 letters. Loop has 8 letters. [2020-07-29 03:06:12,479 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,479 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 18 letters. Loop has 8 letters. [2020-07-29 03:06:12,480 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,480 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 18 letters. Loop has 8 letters. [2020-07-29 03:06:12,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 19 letters. Loop has 8 letters. [2020-07-29 03:06:12,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 19 letters. Loop has 8 letters. [2020-07-29 03:06:12,481 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,481 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 19 letters. Loop has 8 letters. [2020-07-29 03:06:12,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:12,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,485 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 83 states and 115 transitions. cyclomatic complexity: 34 Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:12,485 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,485 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:06:12,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-29 03:06:12,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2020-07-29 03:06:12,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:12,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 10 letters. Loop has 8 letters. [2020-07-29 03:06:12,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 16 letters. [2020-07-29 03:06:12,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:12,502 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 115 transitions. cyclomatic complexity: 34 [2020-07-29 03:06:12,522 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:12,539 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 60 states and 81 transitions. [2020-07-29 03:06:12,541 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-07-29 03:06:12,541 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-07-29 03:06:12,542 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2020-07-29 03:06:12,542 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 03:06:12,542 INFO L688 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2020-07-29 03:06:12,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2020-07-29 03:06:12,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2020-07-29 03:06:12,572 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:06:12,573 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:12,573 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:12,576 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:12,580 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 03:06:12,593 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2020-07-29 03:06:12,593 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2020-07-29 03:06:12,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:06:12,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:06:12,597 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 60 states and 81 transitions. [2020-07-29 03:06:12,597 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 60 states and 81 transitions. [2020-07-29 03:06:12,598 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 03:06:12,613 INFO L93 Difference]: Finished difference Result 127 states and 168 transitions. [2020-07-29 03:06:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 168 transitions. [2020-07-29 03:06:12,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:06:12,616 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:06:12,616 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:06:12,616 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:06:12,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-29 03:06:12,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2020-07-29 03:06:12,620 INFO L711 BuchiCegarLoop]: Abstraction has 53 states and 71 transitions. [2020-07-29 03:06:12,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:06:12,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-29 03:06:12,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-29 03:06:12,624 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand 8 states. [2020-07-29 03:06:12,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:06:12,785 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-07-29 03:06:12,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 03:06:12,786 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-29 03:06:12,797 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 03:06:12,798 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 17 transitions. [2020-07-29 03:06:12,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:06:12,799 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-07-29 03:06:12,799 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 03:06:12,800 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 03:06:12,800 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 03:06:12,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:06:12,800 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:12,800 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:12,800 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:12,800 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:06:12,800 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 03:06:12,800 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:06:12,801 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 03:06:12,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 03:06:12 BoogieIcfgContainer [2020-07-29 03:06:12,807 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 03:06:12,808 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 03:06:12,808 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 03:06:12,808 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 03:06:12,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:08" (3/4) ... [2020-07-29 03:06:12,812 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 03:06:12,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 03:06:12,815 INFO L168 Benchmark]: Toolchain (without parser) took 4571.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 187.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -106.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:12,816 INFO L168 Benchmark]: CDTParser took 1.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:06:12,816 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 938.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:12,817 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 938.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:06:12,818 INFO L168 Benchmark]: Boogie Preprocessor took 75.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:12,819 INFO L168 Benchmark]: RCFGBuilder took 314.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:12,819 INFO L168 Benchmark]: BuchiAutomizer took 3894.49 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 101.0 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:12,820 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:06:12,824 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.12 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.85 ms. Allocated memory is still 1.0 GB. Free memory was 949.5 MB in the beginning and 938.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.52 ms. Allocated memory is still 1.0 GB. Free memory is still 938.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -166.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 314.92 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.4 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3894.49 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 78.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 101.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 7 locations. 1 modules have a trivial ranking function, the largest among these consists of 8 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.2s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 14 SDtfs, 37 SDslu, 34 SDs, 0 SdLazy, 135 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax100 hnf82 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp69 dnf100 smp100 tf112 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 24ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...