./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.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_2-2.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 05dc78db4ae9adf9f9f4e8e18548ea9c0db83e87 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 03:06:08,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 03:06:08,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 03:06:08,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 03:06:08,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 03:06:08,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 03:06:08,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 03:06:08,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 03:06:08,802 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 03:06:08,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 03:06:08,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 03:06:08,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 03:06:08,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 03:06:08,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 03:06:08,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 03:06:08,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 03:06:08,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 03:06:08,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 03:06:08,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 03:06:08,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 03:06:08,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 03:06:08,825 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 03:06:08,826 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 03:06:08,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 03:06:08,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 03:06:08,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 03:06:08,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 03:06:08,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 03:06:08,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 03:06:08,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 03:06:08,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 03:06:08,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 03:06:08,834 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 03:06:08,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 03:06:08,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 03:06:08,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 03:06:08,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 03:06:08,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 03:06:08,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 03:06:08,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 03:06:08,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 03:06:08,840 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 03:06:08,858 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 03:06:08,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 03:06:08,864 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 03:06:08,864 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 03:06:08,864 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 03:06:08,865 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 03:06:08,865 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 03:06:08,865 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 03:06:08,865 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 03:06:08,866 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 03:06:08,866 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 03:06:08,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 03:06:08,868 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 03:06:08,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 03:06:08,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 03:06:08,869 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 03:06:08,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 03:06:08,869 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 03:06:08,869 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 03:06:08,870 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 03:06:08,870 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 03:06:08,870 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 03:06:08,870 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 03:06:08,871 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 03:06:08,871 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 03:06:08,871 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 03:06:08,875 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 03:06:08,876 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 03:06:08,878 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 03:06:08,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 03:06:08,879 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 03:06:08,879 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 03:06:08,881 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 03:06:08,882 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 -> 05dc78db4ae9adf9f9f4e8e18548ea9c0db83e87 [2020-07-29 03:06:09,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 03:06:09,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 03:06:09,216 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 03:06:09,218 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 03:06:09,218 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 03:06:09,219 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2020-07-29 03:06:09,280 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d422734a/cddce26d535c46dc875b494c530bec6d/FLAG0bdac9b1a [2020-07-29 03:06:09,685 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 03:06:09,686 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_2-2.c [2020-07-29 03:06:09,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d422734a/cddce26d535c46dc875b494c530bec6d/FLAG0bdac9b1a [2020-07-29 03:06:10,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d422734a/cddce26d535c46dc875b494c530bec6d [2020-07-29 03:06:10,042 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 03:06:10,045 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 03:06:10,046 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 03:06:10,046 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 03:06:10,051 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 03:06:10,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,057 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d1baa51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10, skipping insertion in model container [2020-07-29 03:06:10,057 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 03:06:10,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 03:06:10,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:06:10,258 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 03:06:10,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 03:06:10,294 INFO L208 MainTranslator]: Completed translation [2020-07-29 03:06:10,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10 WrapperNode [2020-07-29 03:06:10,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 03:06:10,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 03:06:10,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 03:06:10,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 03:06:10,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,316 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,342 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 03:06:10,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 03:06:10,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 03:06:10,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 03:06:10,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (1/1) ... [2020-07-29 03:06:10,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 03:06:10,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 03:06:10,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 03:06:10,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 03:06:10,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (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 03:06:10,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 03:06:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 03:06:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-07-29 03:06:10,516 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-07-29 03:06:10,516 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-07-29 03:06:10,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-07-29 03:06:10,790 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 03:06:10,790 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-07-29 03:06:10,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:10 BoogieIcfgContainer [2020-07-29 03:06:10,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 03:06:10,796 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 03:06:10,796 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 03:06:10,802 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 03:06:10,803 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:10,803 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 03:06:10" (1/3) ... [2020-07-29 03:06:10,805 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7544a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:06:10, skipping insertion in model container [2020-07-29 03:06:10,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:10,805 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 03:06:10" (2/3) ... [2020-07-29 03:06:10,806 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7544a066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 03:06:10, skipping insertion in model container [2020-07-29 03:06:10,806 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 03:06:10,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:10" (3/3) ... [2020-07-29 03:06:10,809 INFO L371 chiAutomizerObserver]: Analyzing ICFG fibo_2calls_2-2.c [2020-07-29 03:06:10,912 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 03:06:10,912 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 03:06:10,912 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 03:06:10,912 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 03:06:10,913 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 03:06:10,913 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 03:06:10,913 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 03:06:10,913 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 03:06:10,930 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:10,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:10,978 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:10,978 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:10,987 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 03:06:10,987 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:06:10,988 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 03:06:10,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:11,010 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:11,010 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:11,010 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:11,011 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 03:06:11,011 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-29 03:06:11,022 INFO L794 eck$LassoCheckResult]: Stem: 23#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret4, main_~x~0, main_~result~0;main_~x~0 := 2; 16#L37true call main_#t~ret4 := fibo1(main_~x~0);< 24#fibo1ENTRYtrue [2020-07-29 03:06:11,023 INFO L796 eck$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 03:06:11,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:11,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1034, now seen corresponding path program 1 times [2020-07-29 03:06:11,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:11,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270672196] [2020-07-29 03:06:11,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:11,166 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:11,175 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:11,194 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:06:11,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:11,196 INFO L82 PathProgramCache]: Analyzing trace with hash 1816359656, now seen corresponding path program 1 times [2020-07-29 03:06:11,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:11,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438054294] [2020-07-29 03:06:11,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:11,212 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 03:06:11,223 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 03:06:11,227 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 03:06:11,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:11,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1268294159, now seen corresponding path program 1 times [2020-07-29 03:06:11,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 03:06:11,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724321376] [2020-07-29 03:06:11,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 03:06:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:11,487 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 03:06:11,490 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 03:06:11,491 INFO L280 TraceCheckUtils]: 2: Hoare triple {36#(<= |fibo1_#in~n| 2)} ~n := #in~n; {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:11,492 INFO L280 TraceCheckUtils]: 3: Hoare triple {37#(<= fibo1_~n 2)} assume !(~n < 1); {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:11,494 INFO L280 TraceCheckUtils]: 4: Hoare triple {37#(<= fibo1_~n 2)} assume !(1 == ~n); {37#(<= fibo1_~n 2)} is VALID [2020-07-29 03:06:11,495 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 03:06:11,497 INFO L280 TraceCheckUtils]: 6: Hoare triple {38#(<= |fibo2_#in~n| 1)} ~n := #in~n; {39#(<= fibo2_~n 1)} is VALID [2020-07-29 03:06:11,498 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 03:06:11,500 INFO L280 TraceCheckUtils]: 8: Hoare triple {40#(and (< 0 fibo2_~n) (<= fibo2_~n 1))} assume !(1 == ~n); {34#false} is VALID [2020-07-29 03:06:11,500 INFO L263 TraceCheckUtils]: 9: Hoare triple {34#false} call #t~ret2 := fibo1(~n - 1); {34#false} is VALID [2020-07-29 03:06:11,504 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 03:06:11,505 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724321376] [2020-07-29 03:06:11,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 03:06:11,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-29 03:06:11,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085087905] [2020-07-29 03:06:11,880 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:06:11,881 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:06:11,881 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:06:11,881 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:06:11,881 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 03:06:11,882 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:11,882 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:06:11,882 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:06:11,882 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2020-07-29 03:06:11,882 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:06:11,883 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:06:11,908 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 03:06:11,917 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 03:06:11,923 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 03:06:11,934 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 03:06:11,939 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 03:06:11,944 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 03:06:11,951 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 03:06:11,956 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 03:06:11,961 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 03:06:11,974 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 03:06:12,174 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:06:12,176 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) [2020-07-29 03:06:12,192 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,192 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,205 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,205 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 03:06:12,250 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,251 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:12,259 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,260 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 03:06:12,297 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,298 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:12,301 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,302 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) [2020-07-29 03:06:12,326 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,326 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,331 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,331 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) [2020-07-29 03:06:12,354 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,354 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,357 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,358 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,386 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,387 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:12,396 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,396 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,441 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,442 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:12,446 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,446 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 03:06:12,493 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,493 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 03:06:12,497 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 03:06:12,497 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) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,534 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 03:06:12,535 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,584 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 03:06:12,584 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 03:06:12,681 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 03:06:12,685 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 03:06:12,685 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 03:06:12,686 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 03:06:12,686 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 03:06:12,686 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 03:06:12,686 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,686 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 03:06:12,686 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 03:06:12,687 INFO L133 ssoRankerPreferences]: Filename of dumped script: fibo_2calls_2-2.c_Iteration1_Loop [2020-07-29 03:06:12,687 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 03:06:12,687 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 03:06:12,697 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 03:06:12,702 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 03:06:12,707 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 03:06:12,711 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 03:06:12,719 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 03:06:12,723 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 03:06:12,727 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 03:06:12,731 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 03:06:12,743 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 03:06:12,747 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 03:06:12,942 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 03:06:12,949 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 03:06:12,966 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 03:06:12,969 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:12,969 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:12,970 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:12,970 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:12,970 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:12,974 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:12,974 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:12,977 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 03:06:13,015 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 03:06:13,018 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,018 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,018 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,019 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,019 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,020 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,020 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 03:06:13,023 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 03:06:13,061 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 03:06:13,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,064 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,065 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,065 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,067 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,067 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 03:06:13,070 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 03:06:13,120 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 03:06:13,123 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,123 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,126 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,126 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:13,129 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) [2020-07-29 03:06:13,182 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 03:06:13,184 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,184 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,185 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,185 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,185 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,186 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,187 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:13,189 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) [2020-07-29 03:06:13,233 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 03:06:13,235 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,236 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,236 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,236 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,237 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,238 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,238 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:13,241 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) [2020-07-29 03:06:13,283 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 03:06:13,285 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,285 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,286 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,286 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,286 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,288 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,288 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:13,290 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) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 03:06:13,325 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 03:06:13,326 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 03:06:13,326 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 03:06:13,326 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 03:06:13,327 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 03:06:13,327 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 03:06:13,328 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 03:06:13,328 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 03:06:13,331 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 03:06:13,354 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 03:06:13,355 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 03:06:13,377 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 03:06:13,377 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 03:06:13,378 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 03:06:13,378 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 03:06:13,418 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 03:06:13,440 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 03:06:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:13,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 03:06:13,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:13,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 03:06:13,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:13,510 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:06:13,518 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 03:06:13,519 INFO L263 TraceCheckUtils]: 1: Hoare triple {41#unseeded} call main_#t~ret4 := fibo1(main_~x~0); {41#unseeded} is VALID [2020-07-29 03:06:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:13,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-29 03:06:13,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 03:06:13,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 03:06:13,815 INFO L280 TraceCheckUtils]: 0: Hoare triple {44#(>= oldRank0 |fibo1_#in~n|)} ~n := #in~n; {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:13,816 INFO L280 TraceCheckUtils]: 1: Hoare triple {62#(<= fibo1_~n oldRank0)} assume !(~n < 1); {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:13,817 INFO L280 TraceCheckUtils]: 2: Hoare triple {62#(<= fibo1_~n oldRank0)} assume !(1 == ~n); {62#(<= fibo1_~n oldRank0)} is VALID [2020-07-29 03:06:13,819 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 03:06:13,820 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 03:06:13,821 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 03:06:13,822 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 03:06:13,824 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 03:06:13,825 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 03:06:13,837 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-29 03:06:13,866 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 03:06:13,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:13,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:13,875 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 03:06:13,876 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 25 states. Second operand 6 states. [2020-07-29 03:06:14,473 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 03:06:14,473 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 03:06:14,474 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:06:14,474 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 25 states. [2020-07-29 03:06:14,486 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:14,489 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:14,490 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:14,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 03:06:14,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-29 03:06:14,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:14,503 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:14,504 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 115 transitions. [2020-07-29 03:06:14,513 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:14,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 03:06:14,513 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 03:06:14,519 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 25 states. [2020-07-29 03:06:14,526 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:14,541 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 12 examples of accepted words. [2020-07-29 03:06:14,541 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 03:06:14,546 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2020-07-29 03:06:14,546 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 03:06:14,547 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 83 states and 115 transitions. cyclomatic complexity: 34 [2020-07-29 03:06:14,564 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 12 examples of accepted words. [2020-07-29 03:06:14,568 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:14,569 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:14,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,570 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 03:06:14,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:14,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:14,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,573 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 03:06:14,573 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,573 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,574 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,576 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,577 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 03:06:14,577 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,578 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 83 letters. Loop has 83 letters. [2020-07-29 03:06:14,579 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,579 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 83 letters. Loop has 83 letters. [2020-07-29 03:06:14,583 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,584 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 03:06:14,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 25 letters. Loop has 25 letters. [2020-07-29 03:06:14,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,585 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 25 letters. Loop has 25 letters. [2020-07-29 03:06:14,585 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,586 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 03:06:14,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,586 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 03:06:14,586 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 7 letters. Loop has 7 letters. [2020-07-29 03:06:14,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,587 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 03:06:14,587 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,587 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 5 letters. Loop has 8 letters. [2020-07-29 03:06:14,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,588 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 5 letters. Loop has 8 letters. [2020-07-29 03:06:14,588 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,589 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 03:06:14,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 9 letters. Loop has 8 letters. [2020-07-29 03:06:14,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 9 letters. Loop has 8 letters. [2020-07-29 03:06:14,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,593 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 03:06:14,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:14,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:14,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,596 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 03:06:14,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 4 letters. Loop has 8 letters. [2020-07-29 03:06:14,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 8 letters. [2020-07-29 03:06:14,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,599 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 03:06:14,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:14,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:14,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,601 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 03:06:14,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:14,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,603 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:14,603 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,603 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 03:06:14,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 03:06:14,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,605 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 03:06:14,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,607 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 03:06:14,607 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,607 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 6 letters. Loop has 8 letters. [2020-07-29 03:06:14,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,608 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 8 letters. [2020-07-29 03:06:14,608 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,609 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 03:06:14,609 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,609 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 7 letters. Loop has 8 letters. [2020-07-29 03:06:14,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,610 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 7 letters. Loop has 8 letters. [2020-07-29 03:06:14,610 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,610 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 03:06:14,611 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,614 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 3 letters. Loop has 8 letters. [2020-07-29 03:06:14,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,615 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 3 letters. Loop has 8 letters. [2020-07-29 03:06:14,615 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,616 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 03:06:14,616 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:14,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,617 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 10 letters. Loop has 13 letters. [2020-07-29 03:06:14,617 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,618 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 03:06:14,618 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,618 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:14,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 13 letters. [2020-07-29 03:06:14,619 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,621 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 03:06:14,621 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,621 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:14,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,622 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 5 letters. [2020-07-29 03:06:14,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,622 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 03:06:14,622 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 20 letters. Loop has 8 letters. [2020-07-29 03:06:14,624 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,624 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 20 letters. Loop has 8 letters. [2020-07-29 03:06:14,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,625 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 03:06:14,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,625 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 21 letters. Loop has 8 letters. [2020-07-29 03:06:14,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 21 letters. Loop has 8 letters. [2020-07-29 03:06:14,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,626 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 03:06:14,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 22 letters. Loop has 8 letters. [2020-07-29 03:06:14,627 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,627 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 22 letters. Loop has 8 letters. [2020-07-29 03:06:14,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,628 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 03:06:14,628 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,628 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,630 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,630 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,631 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 03:06:14,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,631 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:14,631 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:14,632 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,633 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 03:06:14,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,633 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 15 letters. Loop has 8 letters. [2020-07-29 03:06:14,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 8 letters. [2020-07-29 03:06:14,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,634 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 03:06:14,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 16 letters. Loop has 8 letters. [2020-07-29 03:06:14,635 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,635 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 16 letters. Loop has 8 letters. [2020-07-29 03:06:14,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,636 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 03:06:14,636 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,636 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 17 letters. Loop has 8 letters. [2020-07-29 03:06:14,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,637 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 17 letters. Loop has 8 letters. [2020-07-29 03:06:14,637 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,637 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 03:06:14,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 18 letters. Loop has 8 letters. [2020-07-29 03:06:14,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,638 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 18 letters. Loop has 8 letters. [2020-07-29 03:06:14,638 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,639 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 03:06:14,640 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,640 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 19 letters. Loop has 8 letters. [2020-07-29 03:06:14,641 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,641 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 19 letters. Loop has 8 letters. [2020-07-29 03:06:14,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,642 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 03:06:14,642 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,642 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,643 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 14 letters. Loop has 25 letters. [2020-07-29 03:06:14,643 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,643 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 03:06:14,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,644 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 25 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:14,644 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,645 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 34 letters. Loop has 13 letters. [2020-07-29 03:06:14,645 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,645 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 03:06:14,647 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,648 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 03:06:14,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-29 03:06:14,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2020-07-29 03:06:14,658 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 8 letters. [2020-07-29 03:06:14,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 10 letters. Loop has 8 letters. [2020-07-29 03:06:14,659 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,659 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 7 states and 20 transitions. Stem has 2 letters. Loop has 16 letters. [2020-07-29 03:06:14,660 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 03:06:14,661 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 83 states and 115 transitions. cyclomatic complexity: 34 [2020-07-29 03:06:14,687 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 10 [2020-07-29 03:06:14,701 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 83 states to 60 states and 81 transitions. [2020-07-29 03:06:14,703 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 38 [2020-07-29 03:06:14,703 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 39 [2020-07-29 03:06:14,704 INFO L73 IsDeterministic]: Start isDeterministic. Operand 60 states and 81 transitions. [2020-07-29 03:06:14,704 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 03:06:14,704 INFO L688 BuchiCegarLoop]: Abstraction has 60 states and 81 transitions. [2020-07-29 03:06:14,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states and 81 transitions. [2020-07-29 03:06:14,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 53. [2020-07-29 03:06:14,736 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 03:06:14,737 INFO L82 GeneralOperation]: Start isEquivalent. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:14,737 INFO L74 IsIncluded]: Start isIncluded. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:14,739 INFO L87 Difference]: Start difference. First operand 60 states and 81 transitions. Second operand 53 states. [2020-07-29 03:06:14,743 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 03:06:14,759 INFO L93 Difference]: Finished difference Result 112 states and 143 transitions. [2020-07-29 03:06:14,760 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2020-07-29 03:06:14,762 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:06:14,763 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:06:14,763 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand 60 states and 81 transitions. [2020-07-29 03:06:14,763 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 60 states and 81 transitions. [2020-07-29 03:06:14,764 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 03:06:14,780 INFO L93 Difference]: Finished difference Result 127 states and 168 transitions. [2020-07-29 03:06:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 168 transitions. [2020-07-29 03:06:14,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 03:06:14,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 03:06:14,783 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 03:06:14,783 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 03:06:14,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-07-29 03:06:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 71 transitions. [2020-07-29 03:06:14,789 INFO L711 BuchiCegarLoop]: Abstraction has 53 states and 71 transitions. [2020-07-29 03:06:14,789 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 03:06:14,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-29 03:06:14,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-29 03:06:14,792 INFO L87 Difference]: Start difference. First operand 53 states and 71 transitions. Second operand 8 states. [2020-07-29 03:06:14,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 03:06:14,993 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-07-29 03:06:14,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-29 03:06:14,993 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-29 03:06:15,005 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 03:06:15,005 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 17 transitions. [2020-07-29 03:06:15,007 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:06:15,007 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2020-07-29 03:06:15,007 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 03:06:15,007 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 03:06:15,007 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 03:06:15,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 03:06:15,007 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:15,007 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:15,008 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 03:06:15,008 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 03:06:15,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 03:06:15,008 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 03:06:15,008 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 03:06:15,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 03:06:15 BoogieIcfgContainer [2020-07-29 03:06:15,015 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 03:06:15,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 03:06:15,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 03:06:15,016 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 03:06:15,017 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 03:06:10" (3/4) ... [2020-07-29 03:06:15,021 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 03:06:15,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 03:06:15,024 INFO L168 Benchmark]: Toolchain (without parser) took 4980.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 207.6 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -123.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:15,025 INFO L168 Benchmark]: CDTParser took 0.34 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 03:06:15,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.31 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:15,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.62 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 03:06:15,032 INFO L168 Benchmark]: Boogie Preprocessor took 88.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:15,033 INFO L168 Benchmark]: RCFGBuilder took 364.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:15,034 INFO L168 Benchmark]: BuchiAutomizer took 4219.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. [2020-07-29 03:06:15,035 INFO L168 Benchmark]: Witness Printer took 5.10 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 03:06:15,048 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 0.34 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 250.31 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 940.1 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 44.62 ms. Allocated memory is still 1.0 GB. Free memory is still 940.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 88.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 940.1 MB in the beginning and 1.1 GB in the end (delta: -191.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 364.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4219.85 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 72.9 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 31.0 MB). Peak memory consumption was 103.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.10 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 4.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.4s. Construction of modules took 0.3s. 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, 0.3s 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: 26ms 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...