./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.02.c --full-output -ea --architecture 64bit -------------------------------------------------------------------------------- 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/termination-restricted-15/b.02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash b51be02cd04e7c7b94c5cc3bb2f6a3db64eee451 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:31:15,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:31:15,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:31:15,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:31:15,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:31:15,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:31:15,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:31:15,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:31:15,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:31:15,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:31:15,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:31:15,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:31:15,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:31:15,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:31:15,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:31:15,884 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:31:15,886 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:31:15,888 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:31:15,890 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:31:15,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:31:15,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:31:15,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:31:15,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:31:15,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:31:15,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:31:15,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:31:15,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:31:15,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:31:15,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:31:15,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:31:15,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:31:15,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:31:15,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:31:15,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:31:15,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:31:15,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:31:15,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:31:15,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:31:15,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:31:15,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:31:15,925 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:31:15,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:31:15,969 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:31:15,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:31:15,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:31:15,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:31:15,971 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:31:15,972 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:31:15,972 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:31:15,974 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:31:15,974 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:31:15,975 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:31:15,975 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:31:15,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:31:15,975 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:31:15,976 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:31:15,976 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:31:15,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:31:15,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:31:15,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:31:15,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:31:15,977 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:31:15,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:31:15,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:31:15,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:31:15,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:31:15,979 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:31:15,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:31:15,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:31:15,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:31:15,980 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:31:15,981 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:31:15,982 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b51be02cd04e7c7b94c5cc3bb2f6a3db64eee451 [2020-07-29 01:31:16,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:31:16,345 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:31:16,348 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:31:16,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:31:16,350 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:31:16,351 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.02.c [2020-07-29 01:31:16,427 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26e1da8e/dc020405c5614f86b2364e55bcb5b9f8/FLAG1390bb01d [2020-07-29 01:31:16,890 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:31:16,891 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.02.c [2020-07-29 01:31:16,898 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26e1da8e/dc020405c5614f86b2364e55bcb5b9f8/FLAG1390bb01d [2020-07-29 01:31:17,261 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d26e1da8e/dc020405c5614f86b2364e55bcb5b9f8 [2020-07-29 01:31:17,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:31:17,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:31:17,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:17,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:31:17,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:31:17,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,277 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5235c7b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17, skipping insertion in model container [2020-07-29 01:31:17,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:31:17,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:31:17,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:17,469 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:31:17,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:17,499 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:31:17,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17 WrapperNode [2020-07-29 01:31:17,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:17,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:17,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:31:17,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:31:17,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:17,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:31:17,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:31:17,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:31:17,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,600 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,601 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (1/1) ... [2020-07-29 01:31:17,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:31:17,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:31:17,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:31:17,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:31:17,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (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 01:31:17,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:31:17,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:31:17,844 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:31:17,844 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:31:17,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:17 BoogieIcfgContainer [2020-07-29 01:31:17,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:31:17,849 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:31:17,849 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:31:17,853 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:31:17,854 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:17,854 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:31:17" (1/3) ... [2020-07-29 01:31:17,855 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12ef9efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:17, skipping insertion in model container [2020-07-29 01:31:17,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:17,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:17" (2/3) ... [2020-07-29 01:31:17,856 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@12ef9efe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:17, skipping insertion in model container [2020-07-29 01:31:17,856 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:17,856 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:17" (3/3) ... [2020-07-29 01:31:17,858 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.02.c [2020-07-29 01:31:17,921 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:31:17,922 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:31:17,922 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:31:17,922 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:31:17,923 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:31:17,923 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:31:17,923 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:31:17,923 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:31:17,943 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:18,000 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:18,001 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:18,001 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:18,017 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:18,017 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:18,017 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:31:18,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:18,022 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:18,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:18,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:18,023 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:18,023 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:31:18,038 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L11-2true [2020-07-29 01:31:18,039 INFO L796 eck$LassoCheckResult]: Loop: 8#L11-2true assume !!(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := 1 + main_~y~0; 8#L11-2true [2020-07-29 01:31:18,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:18,047 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:31:18,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:18,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862732779] [2020-07-29 01:31:18,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,127 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,132 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,147 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:18,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:18,149 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2020-07-29 01:31:18,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:18,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659833348] [2020-07-29 01:31:18,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:18,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,168 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,170 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:18,172 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:31:18,172 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:18,172 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707584000] [2020-07-29 01:31:18,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:18,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:18,190 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:18,269 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:18,271 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:18,271 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:18,271 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:18,271 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:18,271 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:18,271 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:18,272 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:18,272 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.02.c_Iteration1_Loop [2020-07-29 01:31:18,272 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:18,272 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:18,318 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 01:31:18,336 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 01:31:18,345 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 01:31:18,580 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:18,581 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 01:31:18,597 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:18,598 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 01:31:18,612 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:18,612 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=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 01:31:18,664 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:18,664 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:18,670 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:18,671 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} 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) [2020-07-29 01:31:18,717 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:18,718 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:18,776 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:18,777 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 01:31:18,875 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:18,878 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:18,878 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:18,879 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:18,879 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:18,879 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:18,879 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:18,879 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:18,880 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:18,880 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.02.c_Iteration1_Loop [2020-07-29 01:31:18,880 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:18,880 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:18,900 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 01:31:18,912 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 01:31:18,920 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 01:31:19,066 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:19,072 INFO L489 LassoAnalysis]: Using template 'affine'. 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 01:31:19,085 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 01:31:19,088 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:19,089 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:19,089 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:19,089 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:19,096 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:19,096 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:19,103 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:19,148 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 01:31:19,150 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:19,151 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:19,151 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:19,151 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:19,155 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:19,155 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:19,161 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 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 01:31:19,193 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 01:31:19,195 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:19,195 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:19,196 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:19,196 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:19,196 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:19,199 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:19,199 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:19,202 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:19,209 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:19,209 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. 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) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:19,220 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:19,220 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:19,221 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:19,222 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~x~0 - 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-29 01:31:19,258 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:19,262 INFO L393 LassoCheck]: Loop: "assume !!(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := 1 + main_~y~0;" [2020-07-29 01:31:19,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:19,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:19,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:19,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:19,328 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:19,340 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#unseeded} havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; {16#unseeded} is VALID [2020-07-29 01:31:19,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:19,348 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-29 01:31:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:19,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:19,356 INFO L280 TraceCheckUtils]: 0: Hoare triple {19#(>= oldRank0 (+ ULTIMATE.start_main_~x~0 (* (- 1) ULTIMATE.start_main_~y~0)))} assume !!(main_~x~0 > main_~y~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := 1 + main_~y~0; {29#(or (and (>= oldRank0 0) (> oldRank0 (+ ULTIMATE.start_main_~x~0 (* (- 1) ULTIMATE.start_main_~y~0)))) unseeded)} is VALID [2020-07-29 01:31:19,356 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 01:31:19,367 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:31:19,375 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:19,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,389 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:31:19,391 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2020-07-29 01:31:19,449 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2020-07-29 01:31:19,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:31:19,450 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:19,450 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2020-07-29 01:31:19,452 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:19,452 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:19,452 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:19,452 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:31:19,455 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:19,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:19,456 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:19,456 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2020-07-29 01:31:19,457 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:19,457 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:19,459 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 6 states. [2020-07-29 01:31:19,461 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:31:19,461 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 1 examples of accepted words. [2020-07-29 01:31:19,461 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:31:19,463 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:31:19,463 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:19,464 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:19,464 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:19,464 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:19,464 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:31:19,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,465 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,465 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,466 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,466 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,467 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:19,467 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:19,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 15 letters. Loop has 15 letters. [2020-07-29 01:31:19,468 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,468 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:19,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:19,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:19,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:19,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:19,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:31:19,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,471 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,471 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,472 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,472 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:19,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:19,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,473 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:19,473 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,474 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,474 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,475 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 15 states and 18 transitions. cyclomatic complexity: 4 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,475 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,475 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:19,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:31:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2020-07-29 01:31:19,482 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:31:19,482 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:19,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,483 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:19,483 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:19,484 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. cyclomatic complexity: 4 [2020-07-29 01:31:19,488 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:19,491 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-07-29 01:31:19,493 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:19,493 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:19,493 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:19,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:19,494 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:19,494 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:19,494 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:19,494 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:31:19,494 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:31:19,495 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:19,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:19,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:31:19 BoogieIcfgContainer [2020-07-29 01:31:19,502 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:31:19,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:31:19,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:31:19,503 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:31:19,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:17" (3/4) ... [2020-07-29 01:31:19,508 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:31:19,508 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:31:19,512 INFO L168 Benchmark]: Toolchain (without parser) took 2244.59 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 960.2 MB in the beginning and 975.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 116.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:19,512 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:19,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.71 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:19,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 1.0 GB. Free memory is still 948.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:19,515 INFO L168 Benchmark]: Boogie Preprocessor took 75.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 948.2 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:19,516 INFO L168 Benchmark]: RCFGBuilder took 237.96 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:19,517 INFO L168 Benchmark]: BuchiAutomizer took 1653.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.6 MB in the end (delta: 135.4 MB). Peak memory consumption was 135.4 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:19,517 INFO L168 Benchmark]: Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 975.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:31:19,522 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 0.21 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.71 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 1.0 GB. Free memory is still 948.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 75.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 948.2 MB in the beginning and 1.1 GB in the end (delta: -180.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 237.96 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: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1653.43 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 975.6 MB in the end (delta: 135.4 MB). Peak memory consumption was 135.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.34 ms. Allocated memory is still 1.2 GB. Free memory is still 975.6 MB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x + -1 * y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. 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: 4 SDtfs, 5 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp55 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq179 hnf92 smp100 dnf100 smp100 tf108 neg100 sie107 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 29ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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...