./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/b.11.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.11.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 7711c52d03cf170922076ef9d83d98ea57ca0c02 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 01:31:23,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:31:23,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:31:23,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:31:23,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:31:23,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:31:23,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:31:23,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:31:23,449 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:31:23,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:31:23,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:31:23,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:31:23,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:31:23,460 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:31:23,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:31:23,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:31:23,465 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:31:23,466 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:31:23,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:31:23,473 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:31:23,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:31:23,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:31:23,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:31:23,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:31:23,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:31:23,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:31:23,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:31:23,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:31:23,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:31:23,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:31:23,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:31:23,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:31:23,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:31:23,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:31:23,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:31:23,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:31:23,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:31:23,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:31:23,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:31:23,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:31:23,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:31:23,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:31:23,546 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:31:23,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:31:23,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:31:23,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:31:23,553 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:31:23,554 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:31:23,554 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:31:23,555 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:31:23,556 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:31:23,556 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:31:23,557 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:31:23,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:31:23,559 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:31:23,559 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:31:23,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:31:23,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:31:23,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:31:23,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:31:23,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:31:23,562 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:31:23,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:31:23,563 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:31:23,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:31:23,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:31:23,564 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:31:23,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:31:23,565 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:31:23,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:31:23,565 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:31:23,566 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:31:23,567 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 -> 7711c52d03cf170922076ef9d83d98ea57ca0c02 [2020-07-29 01:31:23,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:31:23,916 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:31:23,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:31:23,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:31:23,923 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:31:23,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/b.11.c [2020-07-29 01:31:23,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c982e49fa/f0d99655c0484777bc70605ceff3a6ee/FLAGf51e8e902 [2020-07-29 01:31:24,478 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:31:24,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/b.11.c [2020-07-29 01:31:24,486 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c982e49fa/f0d99655c0484777bc70605ceff3a6ee/FLAGf51e8e902 [2020-07-29 01:31:24,880 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c982e49fa/f0d99655c0484777bc70605ceff3a6ee [2020-07-29 01:31:24,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:31:24,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:31:24,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:24,889 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:31:24,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:31:24,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:24" (1/1) ... [2020-07-29 01:31:24,898 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a8310ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:24, skipping insertion in model container [2020-07-29 01:31:24,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:31:24" (1/1) ... [2020-07-29 01:31:24,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:31:24,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:31:25,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:25,177 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:31:25,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:31:25,211 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:31:25,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25 WrapperNode [2020-07-29 01:31:25,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:31:25,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:25,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:31:25,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:31:25,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,229 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:31:25,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:31:25,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:31:25,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:31:25,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,325 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (1/1) ... [2020-07-29 01:31:25,327 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:31:25,327 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:31:25,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:31:25,328 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:31:25,329 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (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 01:31:25,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:31:25,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:31:25,621 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:31:25,621 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-29 01:31:25,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:25 BoogieIcfgContainer [2020-07-29 01:31:25,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:31:25,626 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:31:25,626 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:31:25,629 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:31:25,630 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:25,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:31:24" (1/3) ... [2020-07-29 01:31:25,632 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f551d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:25, skipping insertion in model container [2020-07-29 01:31:25,632 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:25,632 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:31:25" (2/3) ... [2020-07-29 01:31:25,633 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1f551d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:31:25, skipping insertion in model container [2020-07-29 01:31:25,633 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:31:25,633 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:25" (3/3) ... [2020-07-29 01:31:25,635 INFO L371 chiAutomizerObserver]: Analyzing ICFG b.11.c [2020-07-29 01:31:25,700 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:31:25,700 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:31:25,700 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:31:25,700 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:31:25,701 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:31:25,701 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:31:25,701 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:31:25,701 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:31:25,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:25,756 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:25,757 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:25,757 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:25,766 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:25,766 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:31:25,766 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:31:25,767 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:25,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:25,770 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:25,770 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:25,770 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 01:31:25,770 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 01:31:25,781 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L15-2true [2020-07-29 01:31:25,782 INFO L796 eck$LassoCheckResult]: Loop: 8#L15-2true assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 6#L12true assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1; 8#L15-2true [2020-07-29 01:31:25,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:25,790 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 01:31:25,802 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:25,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705578206] [2020-07-29 01:31:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:25,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,883 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,907 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:25,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-07-29 01:31:25,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:25,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093831177] [2020-07-29 01:31:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:25,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,928 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,936 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,938 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:25,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:25,940 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-07-29 01:31:25,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:25,941 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134202333] [2020-07-29 01:31:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:25,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,953 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:25,961 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:25,964 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:26,075 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:26,076 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:26,077 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:26,077 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:26,077 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:26,077 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:26,077 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:26,078 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:26,078 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2020-07-29 01:31:26,078 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:26,078 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:26,117 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 01:31:26,135 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 01:31:26,145 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 01:31:26,304 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:26,306 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 01:31:26,314 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:26,314 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 01:31:26,325 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:26,326 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) [2020-07-29 01:31:26,366 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:26,366 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:26,375 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:26,375 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 01:31:26,413 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:26,413 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 01:31:26,456 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:26,457 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 01:31:26,504 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:26,506 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:26,506 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:26,507 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:26,507 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:26,507 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:26,507 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:26,507 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:26,507 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:26,508 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration1_Loop [2020-07-29 01:31:26,508 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:26,508 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:26,521 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 01:31:26,529 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 01:31:26,536 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 01:31:26,679 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:26,686 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 01:31:26,692 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 01:31:26,696 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:26,696 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:26,696 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:26,697 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:26,703 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:26,704 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 01:31:26,711 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 01:31:26,751 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 01:31:26,754 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:26,754 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:26,754 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:26,755 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:26,759 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:26,759 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 01:31:26,765 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 01:31:26,805 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 01:31:26,807 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:26,807 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:26,808 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:26,808 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:26,808 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:26,810 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:31:26,811 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 01:31:26,814 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:26,821 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:26,821 INFO L444 ModelExtractionUtils]: 1 out of 4 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:26,835 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:26,836 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:26,836 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:26,837 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:26,876 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:26,881 INFO L393 LassoCheck]: Loop: "assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0);" "assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1;" [2020-07-29 01:31:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:26,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:26,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:26,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:26,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:26,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#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; {18#unseeded} is VALID [2020-07-29 01:31:26,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:26,944 WARN L261 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-29 01:31:26,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:26,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:26,979 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#(>= oldRank0 ULTIMATE.start_main_~x~0)} assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); {36#(and (<= ULTIMATE.start_main_~x~0 oldRank0) (< 0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)))} is VALID [2020-07-29 01:31:26,980 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#(and (<= ULTIMATE.start_main_~x~0 oldRank0) (< 0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)))} assume main_~x~0 > main_~y~0;main_~x~0 := main_~x~0 - 1; {31#(or (and (> oldRank0 ULTIMATE.start_main_~x~0) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:31:26,981 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 01:31:26,992 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:31:27,002 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:27,004 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,008 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,015 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2020-07-29 01:31:27,016 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-07-29 01:31:27,119 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 33 transitions. Complement of second has 7 states. [2020-07-29 01:31:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-07-29 01:31:27,120 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:27,120 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 01:31:27,122 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:27,122 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:27,122 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:27,123 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 01:31:27,125 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-29 01:31:27,126 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:27,126 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:27,126 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 33 transitions. [2020-07-29 01:31:27,128 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:27,128 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:27,128 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:27,131 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 8 states. [2020-07-29 01:31:27,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:27,133 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:31:27,134 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 01:31:27,136 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2020-07-29 01:31:27,136 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:27,137 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 23 states and 33 transitions. cyclomatic complexity: 12 [2020-07-29 01:31:27,138 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:31:27,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,138 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,138 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,140 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,140 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,141 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,141 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,142 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,142 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:27,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:27,143 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,143 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 23 letters. Loop has 23 letters. [2020-07-29 01:31:27,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:27,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,144 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:27,144 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 8 letters. Loop has 8 letters. [2020-07-29 01:31:27,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:27,145 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,145 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:27,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 5 letters. Loop has 5 letters. [2020-07-29 01:31:27,146 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,147 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:27,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:27,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:31:27,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,150 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,150 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:27,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:27,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:31:27,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,152 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,152 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,153 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,153 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:27,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:27,154 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,154 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:27,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:31:27,155 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,155 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:31:27,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:31:27,156 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,156 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,157 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 33 transitions. cyclomatic complexity: 12 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:27,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,158 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:27,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 01:31:27,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 17 transitions. [2020-07-29 01:31:27,162 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 01:31:27,162 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-29 01:31:27,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,163 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 17 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-29 01:31:27,163 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:27,164 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 33 transitions. cyclomatic complexity: 12 [2020-07-29 01:31:27,168 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:27,174 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 10 states and 14 transitions. [2020-07-29 01:31:27,176 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-29 01:31:27,176 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2020-07-29 01:31:27,177 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 14 transitions. [2020-07-29 01:31:27,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2020-07-29 01:31:27,177 INFO L688 BuchiCegarLoop]: Abstraction has 10 states and 14 transitions. [2020-07-29 01:31:27,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 14 transitions. [2020-07-29 01:31:27,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-07-29 01:31:27,209 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:31:27,209 INFO L82 GeneralOperation]: Start isEquivalent. First operand 10 states and 14 transitions. Second operand 9 states. [2020-07-29 01:31:27,210 INFO L74 IsIncluded]: Start isIncluded. First operand 10 states and 14 transitions. Second operand 9 states. [2020-07-29 01:31:27,213 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. Second operand 9 states. [2020-07-29 01:31:27,217 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:31:27,220 INFO L93 Difference]: Finished difference Result 10 states and 14 transitions. [2020-07-29 01:31:27,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2020-07-29 01:31:27,222 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:31:27,222 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:31:27,222 INFO L74 IsIncluded]: Start isIncluded. First operand 9 states. Second operand 10 states and 14 transitions. [2020-07-29 01:31:27,223 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 10 states and 14 transitions. [2020-07-29 01:31:27,223 INFO L149 Difference]: Subtrahend was not deterministic. Recomputing result with determinization. [2020-07-29 01:31:27,225 INFO L93 Difference]: Finished difference Result 11 states and 16 transitions. [2020-07-29 01:31:27,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 16 transitions. [2020-07-29 01:31:27,225 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:31:27,226 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:31:27,226 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:31:27,226 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:31:27,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-29 01:31:27,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 13 transitions. [2020-07-29 01:31:27,229 INFO L711 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-29 01:31:27,229 INFO L591 BuchiCegarLoop]: Abstraction has 9 states and 13 transitions. [2020-07-29 01:31:27,229 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:31:27,229 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. [2020-07-29 01:31:27,230 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 01:31:27,230 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:27,230 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:27,230 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:31:27,231 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-07-29 01:31:27,231 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 79#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 80#L12 [2020-07-29 01:31:27,231 INFO L796 eck$LassoCheckResult]: Loop: 80#L12 assume !(main_~x~0 > main_~y~0); 73#L15 assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1; 74#L15-2 assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); 80#L12 [2020-07-29 01:31:27,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:27,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2020-07-29 01:31:27,232 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:27,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585165843] [2020-07-29 01:31:27,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,240 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,247 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:27,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:27,248 INFO L82 PathProgramCache]: Analyzing trace with hash 44836, now seen corresponding path program 1 times [2020-07-29 01:31:27,249 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:27,249 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584147018] [2020-07-29 01:31:27,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,260 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,267 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,269 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:27,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:27,269 INFO L82 PathProgramCache]: Analyzing trace with hash 29865627, now seen corresponding path program 1 times [2020-07-29 01:31:27,270 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:31:27,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503230126] [2020-07-29 01:31:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:31:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:31:27,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:31:27,304 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:31:27,390 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:27,390 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:27,390 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:27,390 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:27,391 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:31:27,391 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:27,391 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:27,391 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:27,392 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2020-07-29 01:31:27,392 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:27,392 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:27,406 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 01:31:27,414 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 01:31:27,425 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 01:31:27,635 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:27,635 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:27,638 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:27,639 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:27,643 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:27,643 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:31:27,695 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:27,696 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:27,704 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:31:27,704 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:27,745 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:31:27,746 INFO L160 nArgumentSynthesizer]: Using integer mode. 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) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:27,780 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:31:27,780 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:31:27,824 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:31:27,826 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:31:27,827 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:31:27,827 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:31:27,827 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:31:27,827 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:31:27,827 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:27,827 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:31:27,828 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:31:27,828 INFO L133 ssoRankerPreferences]: Filename of dumped script: b.11.c_Iteration2_Loop [2020-07-29 01:31:27,828 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:31:27,832 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:31:27,846 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 01:31:27,855 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 01:31:27,862 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 01:31:28,056 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:31:28,056 INFO L489 LassoAnalysis]: Using template 'affine'. 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) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:28,062 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 01:31:28,064 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:28,064 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:28,064 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:28,064 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:28,070 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:28,070 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:28,075 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 01:31:28,120 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 01:31:28,122 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:28,123 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:28,123 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:31:28,123 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:28,131 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:31:28,131 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:31:28,137 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 01:31:28,185 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 01:31:28,187 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:31:28,187 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:31:28,188 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:31:28,188 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-07-29 01:31:28,188 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:31:28,191 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-29 01:31:28,191 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 01:31:28,197 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:31:28,203 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:31:28,204 INFO L444 ModelExtractionUtils]: 1 out of 4 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:31:28,208 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:31:28,208 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:31:28,208 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:31:28,209 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2020-07-29 01:31:28,243 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:31:28,247 INFO L393 LassoCheck]: Loop: "assume !(main_~x~0 > main_~y~0);" "assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1;" "assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0);" [2020-07-29 01:31:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:28,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:31:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:28,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:31:28,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:28,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:28,275 INFO L280 TraceCheckUtils]: 0: Hoare triple {133#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; {133#unseeded} is VALID [2020-07-29 01:31:28,276 INFO L280 TraceCheckUtils]: 1: Hoare triple {133#unseeded} assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); {133#unseeded} is VALID [2020-07-29 01:31:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:28,285 WARN L261 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-29 01:31:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:31:28,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:31:28,439 INFO L280 TraceCheckUtils]: 0: Hoare triple {136#(>= oldRank0 ULTIMATE.start_main_~y~0)} assume !(main_~x~0 > main_~y~0); {154#(and (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 oldRank0))} is VALID [2020-07-29 01:31:28,440 INFO L280 TraceCheckUtils]: 1: Hoare triple {154#(and (<= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0) (<= ULTIMATE.start_main_~y~0 oldRank0))} assume !(main_~x~0 == main_~y~0);main_~y~0 := main_~y~0 - 1; {158#(and (<= (+ ULTIMATE.start_main_~x~0 1) oldRank0) (<= (+ ULTIMATE.start_main_~y~0 1) oldRank0))} is VALID [2020-07-29 01:31:28,441 INFO L280 TraceCheckUtils]: 2: Hoare triple {158#(and (<= (+ ULTIMATE.start_main_~x~0 1) oldRank0) (<= (+ ULTIMATE.start_main_~y~0 1) oldRank0))} assume !!(((main_~x~0 >= 0 && main_~y~0 < 2147483647 - main_~x~0) || (main_~x~0 < 0 && main_~y~0 > -2147483648 - main_~x~0)) && main_~x~0 + main_~y~0 > 0); {146#(or (and (>= oldRank0 0) (> oldRank0 ULTIMATE.start_main_~y~0)) unseeded)} is VALID [2020-07-29 01:31:28,441 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 01:31:28,441 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-29 01:31:28,450 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:31:28,450 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,450 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,451 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2020-07-29 01:31:28,451 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6 Second operand 4 states. [2020-07-29 01:31:28,580 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 13 transitions. cyclomatic complexity: 6. Second operand 4 states. Result 34 states and 50 transitions. Complement of second has 9 states. [2020-07-29 01:31:28,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2020-07-29 01:31:28,581 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:28,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 13 transitions. cyclomatic complexity: 6 [2020-07-29 01:31:28,581 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:28,581 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:28,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states. [2020-07-29 01:31:28,583 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:31:28,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:31:28,583 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:31:28,584 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 50 transitions. [2020-07-29 01:31:28,585 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:28,585 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:28,586 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 9 states and 13 transitions. cyclomatic complexity: 6 [2020-07-29 01:31:28,586 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:31:28,586 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 4 states. [2020-07-29 01:31:28,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2020-07-29 01:31:28,588 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:31:28,588 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 34 states and 50 transitions. cyclomatic complexity: 22 [2020-07-29 01:31:28,589 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 34 states and 50 transitions. cyclomatic complexity: 22 [2020-07-29 01:31:28,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:28,589 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 01:31:28,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,589 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,589 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,590 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,590 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 34 letters. Loop has 34 letters. [2020-07-29 01:31:28,591 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,591 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 34 letters. Loop has 34 letters. [2020-07-29 01:31:28,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 34 letters. Loop has 34 letters. [2020-07-29 01:31:28,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:31:28,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:31:28,592 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,592 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 9 letters. Loop has 9 letters. [2020-07-29 01:31:28,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:28,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:28,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,593 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 6 letters. Loop has 6 letters. [2020-07-29 01:31:28,593 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,594 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,594 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:28,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:28,595 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,595 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 3 letters. Loop has 3 letters. [2020-07-29 01:31:28,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:28,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:28,596 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,596 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 3 letters. [2020-07-29 01:31:28,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:28,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,597 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:28,597 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:31:28,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 9 states and 13 transitions. cyclomatic complexity: 6 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states. Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,598 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 34 states and 50 transitions. cyclomatic complexity: 22 Stem has 1 letters. Loop has 3 letters. [2020-07-29 01:31:28,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,599 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:31:28,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-29 01:31:28,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 18 transitions. [2020-07-29 01:31:28,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 3 letters. [2020-07-29 01:31:28,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 5 letters. Loop has 3 letters. [2020-07-29 01:31:28,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,601 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 18 transitions. Stem has 2 letters. Loop has 6 letters. [2020-07-29 01:31:28,601 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:31:28,602 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 50 transitions. cyclomatic complexity: 22 [2020-07-29 01:31:28,605 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:28,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 0 states and 0 transitions. [2020-07-29 01:31:28,605 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 01:31:28,605 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 01:31:28,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 01:31:28,606 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:31:28,606 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:28,606 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:28,606 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 01:31:28,606 INFO L424 BuchiCegarLoop]: ======== Iteration 3============ [2020-07-29 01:31:28,606 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 01:31:28,606 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 01:31:28,607 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 01:31:28,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:31:28 BoogieIcfgContainer [2020-07-29 01:31:28,614 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:31:28,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:31:28,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:31:28,615 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:31:28,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:31:25" (3/4) ... [2020-07-29 01:31:28,619 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 01:31:28,619 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:31:28,622 INFO L168 Benchmark]: Toolchain (without parser) took 3735.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 179.8 MB). Free memory was 962.9 MB in the beginning and 1.1 GB in the end (delta: -169.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,623 INFO L168 Benchmark]: CDTParser took 0.25 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 01:31:28,623 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.88 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,625 INFO L168 Benchmark]: Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,626 INFO L168 Benchmark]: RCFGBuilder took 297.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,626 INFO L168 Benchmark]: BuchiAutomizer took 2988.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:31:28,627 INFO L168 Benchmark]: Witness Printer took 4.72 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 01:31:28,631 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 0.25 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 323.88 ms. Allocated memory is still 1.0 GB. Free memory was 962.9 MB in the beginning and 952.2 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 95.91 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 92.3 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -134.4 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 297.96 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2988.22 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -64.7 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.72 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 (0 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 6 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 9 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 11 SDslu, 6 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital24 mio100 ax150 hnf98 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq132 hnf96 smp90 dnf133 smp96 tf106 neg98 sie121 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 23ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 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...