./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/NO_01.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/NO_01.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 ac2b0e405f36a91125e1a90b6b63874c5fe808a1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 01:30:16,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 01:30:16,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 01:30:16,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 01:30:16,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 01:30:16,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 01:30:16,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 01:30:16,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 01:30:16,392 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 01:30:16,393 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 01:30:16,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 01:30:16,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 01:30:16,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 01:30:16,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 01:30:16,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 01:30:16,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 01:30:16,400 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 01:30:16,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 01:30:16,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 01:30:16,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 01:30:16,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 01:30:16,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 01:30:16,409 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 01:30:16,410 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 01:30:16,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 01:30:16,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 01:30:16,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 01:30:16,414 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 01:30:16,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 01:30:16,416 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 01:30:16,416 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 01:30:16,417 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 01:30:16,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 01:30:16,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 01:30:16,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 01:30:16,420 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 01:30:16,421 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 01:30:16,421 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 01:30:16,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 01:30:16,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 01:30:16,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 01:30:16,424 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2020-07-29 01:30:16,444 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 01:30:16,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 01:30:16,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 01:30:16,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 01:30:16,446 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 01:30:16,446 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 01:30:16,446 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 01:30:16,447 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 01:30:16,447 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 01:30:16,447 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 01:30:16,447 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 01:30:16,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 01:30:16,448 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 01:30:16,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 01:30:16,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 01:30:16,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 01:30:16,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 01:30:16,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 01:30:16,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 01:30:16,449 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 01:30:16,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 01:30:16,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 01:30:16,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 01:30:16,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 01:30:16,450 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 01:30:16,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 01:30:16,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 01:30:16,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 01:30:16,451 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 01:30:16,452 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 01:30:16,453 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 -> ac2b0e405f36a91125e1a90b6b63874c5fe808a1 [2020-07-29 01:30:16,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 01:30:16,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 01:30:16,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 01:30:16,757 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 01:30:16,758 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 01:30:16,758 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-07-29 01:30:16,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566552236/62f25e54096d4df89e18d979ae7d900f/FLAGa6f865b4c [2020-07-29 01:30:17,279 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 01:30:17,279 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/NO_01.c [2020-07-29 01:30:17,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566552236/62f25e54096d4df89e18d979ae7d900f/FLAGa6f865b4c [2020-07-29 01:30:17,698 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/566552236/62f25e54096d4df89e18d979ae7d900f [2020-07-29 01:30:17,701 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 01:30:17,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 01:30:17,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:17,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 01:30:17,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 01:30:17,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:17,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5573d26d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17, skipping insertion in model container [2020-07-29 01:30:17,714 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:17,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 01:30:17,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 01:30:17,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:17,904 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 01:30:17,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 01:30:17,936 INFO L208 MainTranslator]: Completed translation [2020-07-29 01:30:17,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17 WrapperNode [2020-07-29 01:30:17,937 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 01:30:17,938 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:17,938 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 01:30:17,938 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 01:30:17,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:17,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:17,976 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 01:30:17,977 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 01:30:17,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 01:30:17,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 01:30:18,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,053 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,074 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... [2020-07-29 01:30:18,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 01:30:18,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 01:30:18,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 01:30:18,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 01:30:18,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 01:30:18,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 01:30:18,432 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 01:30:18,432 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-29 01:30:18,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:18 BoogieIcfgContainer [2020-07-29 01:30:18,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 01:30:18,437 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 01:30:18,437 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 01:30:18,442 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 01:30:18,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:18,443 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 01:30:17" (1/3) ... [2020-07-29 01:30:18,444 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@165bc227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:18, skipping insertion in model container [2020-07-29 01:30:18,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:18,445 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 01:30:17" (2/3) ... [2020-07-29 01:30:18,445 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@165bc227 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 01:30:18, skipping insertion in model container [2020-07-29 01:30:18,445 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 01:30:18,446 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:18" (3/3) ... [2020-07-29 01:30:18,448 INFO L371 chiAutomizerObserver]: Analyzing ICFG NO_01.c [2020-07-29 01:30:18,519 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 01:30:18,520 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 01:30:18,520 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 01:30:18,521 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 01:30:18,521 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 01:30:18,521 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 01:30:18,521 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 01:30:18,521 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 01:30:18,557 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-07-29 01:30:18,618 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-29 01:30:18,619 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:18,619 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:18,626 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:30:18,626 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:18,626 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 01:30:18,626 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-07-29 01:30:18,631 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-29 01:30:18,631 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:18,631 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:18,631 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-07-29 01:30:18,632 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:18,640 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 3#L10true assume main_~c~0 <= 10;main_~i~0 := 0; 4#L12-2true [2020-07-29 01:30:18,640 INFO L796 eck$LassoCheckResult]: Loop: 4#L12-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; 4#L12-2true [2020-07-29 01:30:18,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:18,647 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2020-07-29 01:30:18,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:18,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089813937] [2020-07-29 01:30:18,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:18,819 INFO L280 TraceCheckUtils]: 0: Hoare triple {16#true} havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; {18#(<= 864 ULTIMATE.start_main_~c~0)} is VALID [2020-07-29 01:30:18,821 INFO L280 TraceCheckUtils]: 1: Hoare triple {18#(<= 864 ULTIMATE.start_main_~c~0)} assume main_~c~0 <= 10;main_~i~0 := 0; {17#false} is VALID [2020-07-29 01:30:18,823 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 01:30:18,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089813937] [2020-07-29 01:30:18,825 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-29 01:30:18,825 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-29 01:30:18,826 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555788146] [2020-07-29 01:30:18,831 INFO L799 eck$LassoCheckResult]: stem already infeasible [2020-07-29 01:30:18,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:18,831 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2020-07-29 01:30:18,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:18,832 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053991370] [2020-07-29 01:30:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:18,842 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:18,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:18,845 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:18,860 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:18,905 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:18,906 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:18,906 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:18,906 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:18,907 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 01:30:18,907 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:18,907 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:18,907 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:18,907 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-07-29 01:30:18,908 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:18,908 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:18,940 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 01:30:18,953 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 01:30:18,964 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 01:30:19,103 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:19,104 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 01:30:19,111 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:19,112 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 01:30:19,123 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:19,123 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,165 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:19,166 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:19,176 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 01:30:19,176 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 01:30:19,219 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 01:30:19,219 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,266 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 01:30:19,266 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 01:30:19,308 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 01:30:19,311 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 01:30:19,311 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 01:30:19,311 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 01:30:19,311 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 01:30:19,312 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 01:30:19,312 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,313 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 01:30:19,313 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 01:30:19,313 INFO L133 ssoRankerPreferences]: Filename of dumped script: NO_01.c_Iteration1_Loop [2020-07-29 01:30:19,313 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 01:30:19,313 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 01:30:19,324 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 01:30:19,331 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 01:30:19,338 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 01:30:19,462 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 01:30:19,468 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,474 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 01:30:19,478 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:19,478 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:19,479 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:19,479 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:19,492 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:19,493 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:19,502 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) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,530 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 01:30:19,532 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:19,532 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:19,532 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:19,532 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:19,537 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-07-29 01:30:19,538 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2020-07-29 01:30:19,544 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) [2020-07-29 01:30:19,579 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 01:30:19,581 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 01:30:19,581 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 01:30:19,582 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 01:30:19,582 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 01:30:19,582 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 01:30:19,584 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 01:30:19,584 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,589 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 01:30:19,597 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 01:30:19,597 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 01:30:19,603 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 01:30:19,603 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 01:30:19,603 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 01:30:19,604 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 199 Supporting invariants [] Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 01:30:19,638 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 01:30:19,642 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0;" [2020-07-29 01:30:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:19,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:19,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:19,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 01:30:19,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:19,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:19,710 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#unseeded} havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; {21#unseeded} is VALID [2020-07-29 01:30:19,711 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#unseeded} assume main_~c~0 <= 10;main_~i~0 := 0; {21#unseeded} is VALID [2020-07-29 01:30:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:19,716 WARN L261 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 01:30:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 01:30:19,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 01:30:19,722 INFO L280 TraceCheckUtils]: 0: Hoare triple {24#(>= oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 199))} assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0; {34#(or (and (> oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 199)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 01:30:19,722 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 01:30:19,733 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-29 01:30:19,741 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 01:30:19,744 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,745 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,752 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2020-07-29 01:30:19,753 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2020-07-29 01:30:19,839 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 29 states and 45 transitions. Complement of second has 5 states. [2020-07-29 01:30:19,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 01:30:19,840 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:19,840 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2020-07-29 01:30:19,843 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-29 01:30:19,843 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:19,843 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:19,844 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 2 states. [2020-07-29 01:30:19,848 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:30:19,848 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:19,848 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:19,849 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 45 transitions. [2020-07-29 01:30:19,851 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2020-07-29 01:30:19,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:19,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:19,853 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 12 states. [2020-07-29 01:30:19,856 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 4 [2020-07-29 01:30:19,857 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 4 examples of accepted words. [2020-07-29 01:30:19,857 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 2 states. [2020-07-29 01:30:19,860 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2020-07-29 01:30:19,861 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 01:30:19,861 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 29 states and 45 transitions. cyclomatic complexity: 22 [2020-07-29 01:30:19,862 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 01:30:19,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 29 letters. Loop has 29 letters. [2020-07-29 01:30:19,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,866 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 29 letters. Loop has 29 letters. [2020-07-29 01:30:19,866 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 29 letters. Loop has 29 letters. [2020-07-29 01:30:19,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,867 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:19,867 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:19,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 12 letters. Loop has 12 letters. [2020-07-29 01:30:19,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,868 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:19,868 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,869 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:19,870 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,870 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 4 letters. [2020-07-29 01:30:19,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,871 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,871 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,872 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,872 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,873 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,873 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,874 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,874 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,875 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,875 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,876 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,876 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,877 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,877 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,878 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,878 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 1 letters. Loop has 1 letters. [2020-07-29 01:30:19,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,879 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 4 letters. Loop has 1 letters. [2020-07-29 01:30:19,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 12 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,882 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 29 states and 45 transitions. cyclomatic complexity: 22 Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,882 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,883 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 01:30:19,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-29 01:30:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-29 01:30:19,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 1 letters. [2020-07-29 01:30:19,887 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,887 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 3 letters. Loop has 1 letters. [2020-07-29 01:30:19,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,888 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 36 transitions. Stem has 2 letters. Loop has 2 letters. [2020-07-29 01:30:19,888 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 01:30:19,889 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 45 transitions. cyclomatic complexity: 22 [2020-07-29 01:30:19,893 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 3 [2020-07-29 01:30:19,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 7 states and 10 transitions. [2020-07-29 01:30:19,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2020-07-29 01:30:19,900 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2020-07-29 01:30:19,900 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2020-07-29 01:30:19,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:19,901 INFO L688 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:19,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2020-07-29 01:30:19,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-07-29 01:30:19,929 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:19,930 INFO L82 GeneralOperation]: Start isEquivalent. First operand 7 states and 10 transitions. Second operand 7 states. [2020-07-29 01:30:19,930 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states and 10 transitions. Second operand 7 states. [2020-07-29 01:30:19,933 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 7 states. [2020-07-29 01:30:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:19,937 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-07-29 01:30:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:30:19,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:19,939 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:19,939 INFO L74 IsIncluded]: Start isIncluded. First operand 7 states. Second operand 7 states and 10 transitions. [2020-07-29 01:30:19,939 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 7 states and 10 transitions. [2020-07-29 01:30:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:19,941 INFO L93 Difference]: Finished difference Result 7 states and 10 transitions. [2020-07-29 01:30:19,941 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 10 transitions. [2020-07-29 01:30:19,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:19,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:19,941 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:19,942 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:19,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-29 01:30:19,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2020-07-29 01:30:19,944 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2020-07-29 01:30:19,944 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-29 01:30:19,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-29 01:30:19,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-29 01:30:19,948 INFO L87 Difference]: Start difference. First operand 7 states and 10 transitions. Second operand 3 states. [2020-07-29 01:30:19,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:19,972 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-07-29 01:30:19,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-29 01:30:19,972 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 01:30:19,976 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 01:30:19,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,978 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:19,978 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 5 states to 5 states and 5 transitions. [2020-07-29 01:30:19,979 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2020-07-29 01:30:19,979 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2020-07-29 01:30:19,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,979 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 01:30:19,979 INFO L688 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-29 01:30:19,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2020-07-29 01:30:19,980 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-29 01:30:19,980 INFO L82 GeneralOperation]: Start isEquivalent. First operand 5 states and 5 transitions. Second operand 5 states. [2020-07-29 01:30:19,981 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states and 5 transitions. Second operand 5 states. [2020-07-29 01:30:19,981 INFO L87 Difference]: Start difference. First operand 5 states and 5 transitions. Second operand 5 states. [2020-07-29 01:30:19,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:19,982 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-07-29 01:30:19,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,982 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:19,982 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:19,983 INFO L74 IsIncluded]: Start isIncluded. First operand 5 states. Second operand 5 states and 5 transitions. [2020-07-29 01:30:19,983 INFO L87 Difference]: Start difference. First operand 5 states. Second operand 5 states and 5 transitions. [2020-07-29 01:30:19,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-29 01:30:19,984 INFO L93 Difference]: Finished difference Result 5 states and 5 transitions. [2020-07-29 01:30:19,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-29 01:30:19,984 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-29 01:30:19,984 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-29 01:30:19,985 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-29 01:30:19,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-29 01:30:19,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-07-29 01:30:19,986 INFO L711 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-29 01:30:19,986 INFO L591 BuchiCegarLoop]: Abstraction has 5 states and 5 transitions. [2020-07-29 01:30:19,986 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 01:30:19,986 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 5 transitions. [2020-07-29 01:30:19,987 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2020-07-29 01:30:19,987 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 01:30:19,987 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 01:30:19,987 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2020-07-29 01:30:19,987 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2020-07-29 01:30:19,988 INFO L794 eck$LassoCheckResult]: Stem: 108#ULTIMATE.startENTRY havoc main_#res;havoc main_~c~0, main_~i~0;havoc main_~c~0;havoc main_~i~0;main_~c~0 := 864; 106#L10 assume !(main_~c~0 <= 10); 107#L17 assume !(main_~c~0 <= 50); 109#L17-1 assume !(main_~c~0 <= 100);main_~i~0 := 0; 110#L31-2 [2020-07-29 01:30:19,988 INFO L796 eck$LassoCheckResult]: Loop: 110#L31-2 assume !!(main_~i~0 < 103);main_~i~0 := main_~i~0; 110#L31-2 [2020-07-29 01:30:19,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:19,988 INFO L82 PathProgramCache]: Analyzing trace with hash 971748, now seen corresponding path program 1 times [2020-07-29 01:30:19,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:19,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643414366] [2020-07-29 01:30:19,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:19,995 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:19,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:19,999 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:20,001 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:20,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:20,001 INFO L82 PathProgramCache]: Analyzing trace with hash 93, now seen corresponding path program 1 times [2020-07-29 01:30:20,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:20,002 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048936334] [2020-07-29 01:30:20,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:20,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:20,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:20,009 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:20,010 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 01:30:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash 30124250, now seen corresponding path program 1 times [2020-07-29 01:30:20,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 01:30:20,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000455981] [2020-07-29 01:30:20,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 01:30:20,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:20,018 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:20,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 01:30:20,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 01:30:20,024 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 01:30:20,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 01:30:20 BoogieIcfgContainer [2020-07-29 01:30:20,096 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 01:30:20,097 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 01:30:20,097 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 01:30:20,097 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 01:30:20,098 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 01:30:18" (3/4) ... [2020-07-29 01:30:20,117 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-07-29 01:30:20,171 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-29 01:30:20,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 01:30:20,175 INFO L168 Benchmark]: Toolchain (without parser) took 2470.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 952.2 MB in the beginning and 968.1 MB in the end (delta: -15.9 MB). Peak memory consumption was 123.5 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:20,175 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:20,176 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:20,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.65 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:20,177 INFO L168 Benchmark]: Boogie Preprocessor took 109.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:20,178 INFO L168 Benchmark]: RCFGBuilder took 349.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:20,178 INFO L168 Benchmark]: BuchiAutomizer took 1659.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 141.9 MB). Peak memory consumption was 141.9 MB. Max. memory is 11.5 GB. [2020-07-29 01:30:20,179 INFO L168 Benchmark]: Witness Printer took 74.84 ms. Allocated memory is still 1.2 GB. Free memory is still 968.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 01:30:20,183 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 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.35 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.4 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 38.65 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 109.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -187.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 349.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1659.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.1 MB in the end (delta: 141.9 MB). Peak memory consumption was 141.9 MB. Max. memory is 11.5 GB. * Witness Printer took 74.84 ms. Allocated memory is still 1.2 GB. Free memory is still 968.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -2 * i + 199 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 21 SDtfs, 24 SDslu, 3 SDs, 0 SdLazy, 6 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital10 mio100 ax220 hnf100 lsp45 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 31]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, c=864, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 31]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int c; [L7] int i; [L8] c = (24*6)*6 [L10] COND FALSE !(c <= 10) [L17] COND FALSE !(c <= 50) [L23] COND FALSE !(c <= 100) [L30] i = 0 Loop: [L31] COND TRUE i < 103 [L32] i = i+0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...