./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer --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 cee692bfa384f30ecd519bc2dc9dfe35c80a4941 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-635dfa2 [2018-12-08 23:47:22,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 23:47:22,977 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 23:47:22,983 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 23:47:22,983 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 23:47:22,983 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 23:47:22,984 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 23:47:22,985 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 23:47:22,986 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 23:47:22,987 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 23:47:22,987 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 23:47:22,987 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 23:47:22,988 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 23:47:22,988 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 23:47:22,989 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 23:47:22,989 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 23:47:22,990 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 23:47:22,991 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 23:47:22,992 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 23:47:22,992 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 23:47:22,993 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 23:47:22,994 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 23:47:22,995 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 23:47:22,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 23:47:22,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 23:47:22,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 23:47:22,996 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 23:47:22,997 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 23:47:22,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 23:47:22,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 23:47:22,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 23:47:22,998 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 23:47:22,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 23:47:22,999 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 23:47:22,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 23:47:22,999 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 23:47:23,000 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 23:47:23,007 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 23:47:23,008 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 23:47:23,008 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 23:47:23,008 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 23:47:23,009 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 23:47:23,009 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 23:47:23,010 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 23:47:23,010 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 23:47:23,011 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 23:47:23,011 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 23:47:23,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 23:47:23,011 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 23:47:23,011 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 23:47:23,011 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 23:47:23,011 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 23:47:23,012 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 23:47:23,012 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 23:47:23,012 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 23:47:23,012 INFO L133 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer 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 -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2018-12-08 23:47:23,030 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 23:47:23,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 23:47:23,041 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 23:47:23,042 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 23:47:23,043 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 23:47:23,043 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c [2018-12-08 23:47:23,084 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/data/b60da7c9a/88e1b7304d584a5181932146593599e2/FLAGc79f148ae [2018-12-08 23:47:23,533 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 23:47:23,534 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/sv-benchmarks/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c [2018-12-08 23:47:23,537 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/data/b60da7c9a/88e1b7304d584a5181932146593599e2/FLAGc79f148ae [2018-12-08 23:47:23,545 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/data/b60da7c9a/88e1b7304d584a5181932146593599e2 [2018-12-08 23:47:23,546 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 23:47:23,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 23:47:23,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:23,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 23:47:23,550 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 23:47:23,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,552 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@709ce3e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23, skipping insertion in model container [2018-12-08 23:47:23,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 23:47:23,564 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 23:47:23,641 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:23,643 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 23:47:23,651 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 23:47:23,659 INFO L195 MainTranslator]: Completed translation [2018-12-08 23:47:23,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23 WrapperNode [2018-12-08 23:47:23,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 23:47:23,659 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:23,659 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 23:47:23,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 23:47:23,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 23:47:23,677 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 23:47:23,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 23:47:23,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 23:47:23,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... [2018-12-08 23:47:23,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 23:47:23,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 23:47:23,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 23:47:23,687 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 23:47:23,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:23,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 23:47:23,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 23:47:23,810 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 23:47:23,810 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-08 23:47:23,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:23 BoogieIcfgContainer [2018-12-08 23:47:23,811 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 23:47:23,811 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 23:47:23,811 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 23:47:23,813 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 23:47:23,814 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:47:23,814 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 11:47:23" (1/3) ... [2018-12-08 23:47:23,815 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64122418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:47:23, skipping insertion in model container [2018-12-08 23:47:23,815 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:47:23,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:47:23" (2/3) ... [2018-12-08 23:47:23,815 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64122418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 11:47:23, skipping insertion in model container [2018-12-08 23:47:23,815 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 23:47:23,815 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:23" (3/3) ... [2018-12-08 23:47:23,816 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_23_false-termination_true-no-overflow.c [2018-12-08 23:47:23,854 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 23:47:23,854 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 23:47:23,854 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 23:47:23,854 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 23:47:23,854 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 23:47:23,855 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 23:47:23,855 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 23:47:23,855 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 23:47:23,855 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 23:47:23,863 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-08 23:47:23,875 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:23,875 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:47:23,875 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:47:23,879 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 23:47:23,879 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 23:47:23,879 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 23:47:23,879 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-12-08 23:47:23,880 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:23,880 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:47:23,880 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:47:23,880 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 23:47:23,880 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 23:47:23,885 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2018-12-08 23:47:23,885 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2018-12-08 23:47:23,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:23,889 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-12-08 23:47:23,890 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:23,890 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:23,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:23,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:23,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-12-08 23:47:23,946 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:23,946 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:23,947 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:23,952 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-12-08 23:47:23,952 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:23,952 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:23,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:23,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:23,982 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:23,983 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:23,983 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:23,983 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:23,983 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:47:23,983 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:23,983 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:23,984 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:23,984 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 23:47:23,984 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:23,984 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:23,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,075 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,075 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,079 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,079 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,107 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:47:24,107 INFO L448 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 /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,110 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,110 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,125 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:47:24,125 INFO L448 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 /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,128 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,145 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:47:24,145 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,184 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:47:24,185 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,186 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,186 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,186 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,186 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:47:24,186 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,186 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,186 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,186 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 23:47:24,186 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,186 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,187 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,197 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,229 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,232 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:47:24,233 INFO L122 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 [2018-12-08 23:47:24,234 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,237 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:24,237 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 23:47:24,242 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:24,242 INFO L122 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 [2018-12-08 23:47:24,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,243 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:24,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,244 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,244 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:47:24,244 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:24,248 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 23:47:24,251 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 23:47:24,251 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 23:47:24,252 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 23:47:24,252 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 23:47:24,252 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 23:47:24,253 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-12-08 23:47:24,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 23:47:24,272 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,278 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,296 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 [2018-12-08 23:47:24,297 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-12-08 23:47:24,325 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2018-12-08 23:47:24,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:47:24,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 23:47:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-12-08 23:47:24,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-12-08 23:47:24,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 23:47:24,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-12-08 23:47:24,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-12-08 23:47:24,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:24,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-12-08 23:47:24,335 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 23:47:24,335 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 23:47:24,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-12-08 23:47:24,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 23:47:24,335 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-08 23:47:24,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-12-08 23:47:24,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-12-08 23:47:24,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-12-08 23:47:24,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-12-08 23:47:24,352 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-08 23:47:24,352 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-12-08 23:47:24,352 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 23:47:24,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-12-08 23:47:24,352 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:24,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:47:24,352 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:47:24,353 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 23:47:24,353 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 23:47:24,353 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2018-12-08 23:47:24,353 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2018-12-08 23:47:24,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,353 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-12-08 23:47:24,353 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:24,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,376 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:24,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-12-08 23:47:24,377 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-08 23:47:24,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,377 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-12-08 23:47:24,378 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,378 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:24,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,402 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,403 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,403 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,403 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,403 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:47:24,403 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,403 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,403 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,403 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 23:47:24,403 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,403 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,412 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,443 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,444 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,445 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,445 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,460 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:47:24,460 INFO L448 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: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,462 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,462 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:47:24,479 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,514 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:47:24,515 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,515 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,515 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,515 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,515 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:47:24,515 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,515 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,516 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,516 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 23:47:24,516 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,516 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,517 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,521 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,543 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,543 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:47:24,544 INFO L122 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 [2018-12-08 23:47:24,544 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,544 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:24,544 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,544 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,544 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,545 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:47:24,545 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:24,547 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 23:47:24,549 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 23:47:24,550 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 23:47:24,550 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 23:47:24,550 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 23:47:24,550 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 23:47:24,550 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-12-08 23:47:24,550 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 23:47:24,559 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,564 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,564 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 [2018-12-08 23:47:24,565 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-08 23:47:24,571 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-12-08 23:47:24,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:47:24,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 23:47:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-08 23:47:24,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 23:47:24,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-12-08 23:47:24,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,572 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-12-08 23:47:24,572 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-12-08 23:47:24,573 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:24,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-12-08 23:47:24,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-12-08 23:47:24,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 23:47:24,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-12-08 23:47:24,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 23:47:24,574 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-08 23:47:24,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-12-08 23:47:24,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-08 23:47:24,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-08 23:47:24,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-12-08 23:47:24,575 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-12-08 23:47:24,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:47:24,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:47:24,577 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2018-12-08 23:47:24,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:24,583 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2018-12-08 23:47:24,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:47:24,584 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2018-12-08 23:47:24,584 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:24,585 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2018-12-08 23:47:24,585 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-08 23:47:24,585 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 23:47:24,585 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-12-08 23:47:24,585 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 23:47:24,585 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-12-08 23:47:24,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-12-08 23:47:24,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-12-08 23:47:24,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-08 23:47:24,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2018-12-08 23:47:24,586 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-12-08 23:47:24,586 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-12-08 23:47:24,586 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 23:47:24,586 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2018-12-08 23:47:24,587 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-12-08 23:47:24,587 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:47:24,587 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:47:24,587 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2018-12-08 23:47:24,587 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-12-08 23:47:24,587 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2018-12-08 23:47:24,587 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2018-12-08 23:47:24,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2018-12-08 23:47:24,587 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,588 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:24,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,596 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 23:47:24,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 23:47:24,596 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-08 23:47:24,596 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-12-08 23:47:24,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-12-08 23:47:24,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:24,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,607 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,607 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,607 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,607 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,607 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:47:24,607 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,607 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,607 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,607 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 23:47:24,607 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,608 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,608 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,631 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,631 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,648 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 23:47:24,648 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,651 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,651 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,667 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:47:24,668 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,703 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:47:24,704 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,704 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,704 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,704 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,704 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:47:24,704 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,705 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,705 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,705 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration3_Loop [2018-12-08 23:47:24,705 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,705 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,706 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,708 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,714 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,733 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,734 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:47:24,734 INFO L122 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 [2018-12-08 23:47:24,735 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,735 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,735 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,735 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,736 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:24,736 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 23:47:24,741 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:24,742 INFO L122 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 [2018-12-08 23:47:24,742 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,742 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:24,742 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,743 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,743 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,743 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:47:24,743 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:24,747 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 23:47:24,749 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 23:47:24,749 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 23:47:24,750 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 23:47:24,750 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 23:47:24,750 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 23:47:24,750 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-12-08 23:47:24,751 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 23:47:24,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,770 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,770 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 [2018-12-08 23:47:24,771 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 23:47:24,778 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2018-12-08 23:47:24,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:47:24,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 23:47:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-08 23:47:24,779 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 23:47:24,779 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,779 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 23:47:24,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,797 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 23:47:24,797 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 23:47:24,807 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2018-12-08 23:47:24,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:47:24,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 23:47:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-08 23:47:24,808 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 23:47:24,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,808 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 23:47:24,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,818 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 23:47:24,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 23:47:24,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 23:47:24,821 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-12-08 23:47:24,822 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-12-08 23:47:24,827 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2018-12-08 23:47:24,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 23:47:24,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 23:47:24,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-12-08 23:47:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 23:47:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2018-12-08 23:47:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2018-12-08 23:47:24,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 23:47:24,828 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2018-12-08 23:47:24,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 23:47:24,829 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2018-12-08 23:47:24,830 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-12-08 23:47:24,830 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 23:47:24,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2018-12-08 23:47:24,830 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 23:47:24,830 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-08 23:47:24,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2018-12-08 23:47:24,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2018-12-08 23:47:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-08 23:47:24,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-12-08 23:47:24,831 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-12-08 23:47:24,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-08 23:47:24,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-08 23:47:24,831 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2018-12-08 23:47:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 23:47:24,838 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-12-08 23:47:24,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-08 23:47:24,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-12-08 23:47:24,839 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-12-08 23:47:24,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2018-12-08 23:47:24,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 23:47:24,839 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-08 23:47:24,839 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-12-08 23:47:24,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 23:47:24,840 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-08 23:47:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-12-08 23:47:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2018-12-08 23:47:24,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-12-08 23:47:24,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-12-08 23:47:24,841 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-12-08 23:47:24,841 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-12-08 23:47:24,841 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 23:47:24,841 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-12-08 23:47:24,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 23:47:24,841 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 23:47:24,841 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 23:47:24,842 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-12-08 23:47:24,842 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-12-08 23:47:24,842 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2018-12-08 23:47:24,842 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-12-08 23:47:24,842 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,842 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-12-08 23:47:24,842 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,843 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:24,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,846 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2018-12-08 23:47:24,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,847 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:24,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,850 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:24,850 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2018-12-08 23:47:24,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:24,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:24,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 23:47:24,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:24,868 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,868 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,868 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,868 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,868 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 23:47:24,869 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,869 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,869 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,869 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-08 23:47:24,869 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,869 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,880 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,914 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,914 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,916 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 23:47:24,916 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/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 [2018-12-08 23:47:24,931 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 23:47:24,931 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 23:47:24,947 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 23:47:24,948 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 23:47:24,948 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 23:47:24,948 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 23:47:24,948 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 23:47:24,948 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 23:47:24,948 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 23:47:24,948 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 23:47:24,948 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 23:47:24,948 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-08 23:47:24,948 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 23:47:24,948 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 23:47:24,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,956 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 23:47:24,980 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 23:47:24,980 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 23:47:24,980 INFO L122 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 [2018-12-08 23:47:24,981 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,981 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,981 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,981 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,982 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:24,982 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 23:47:24,991 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:24,991 INFO L122 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 [2018-12-08 23:47:24,992 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,992 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,992 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,992 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,993 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:24,993 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 23:47:24,996 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:24,996 INFO L122 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 [2018-12-08 23:47:24,997 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,997 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:24,997 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,997 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:24,997 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:24,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 23:47:24,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:24,998 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:24,999 INFO L122 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 [2018-12-08 23:47:24,999 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:24,999 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:24,999 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,000 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 23:47:25,001 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:25,001 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 23:47:25,003 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,003 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-12-08 23:47:25,003 INFO L122 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 [2018-12-08 23:47:25,004 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,004 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,004 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,006 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,006 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,017 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,017 INFO L122 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 [2018-12-08 23:47:25,018 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,018 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,018 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,018 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,019 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,019 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,022 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,022 INFO L122 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 [2018-12-08 23:47:25,022 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,022 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,022 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,022 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,022 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,023 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-08 23:47:25,023 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,023 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,023 INFO L122 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 [2018-12-08 23:47:25,024 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,024 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,024 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,024 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,025 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,025 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,027 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,028 INFO L497 LassoAnalysis]: Using template '3-nested'. [2018-12-08 23:47:25,028 INFO L122 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 [2018-12-08 23:47:25,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,029 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,029 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,029 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,031 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,031 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,047 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,047 INFO L122 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 [2018-12-08 23:47:25,048 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,048 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,048 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,048 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,050 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,050 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,054 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,055 INFO L122 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 [2018-12-08 23:47:25,055 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,055 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,056 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,056 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,056 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,056 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 23:47:25,056 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,057 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,057 INFO L122 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 [2018-12-08 23:47:25,058 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,058 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,058 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,058 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,060 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,060 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,063 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,063 INFO L497 LassoAnalysis]: Using template '4-nested'. [2018-12-08 23:47:25,063 INFO L122 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 [2018-12-08 23:47:25,064 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,064 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,064 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,064 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,066 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,066 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,077 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,077 INFO L122 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 [2018-12-08 23:47:25,078 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,078 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,078 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,078 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,080 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,080 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,084 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,085 INFO L122 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 [2018-12-08 23:47:25,085 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,085 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,085 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,085 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,085 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,086 INFO L402 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2018-12-08 23:47:25,086 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,086 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,087 INFO L122 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 [2018-12-08 23:47:25,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 23:47:25,087 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,087 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,087 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,088 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,089 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,091 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,091 INFO L497 LassoAnalysis]: Using template '2-phase'. [2018-12-08 23:47:25,091 INFO L122 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 [2018-12-08 23:47:25,092 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,092 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,092 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,093 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,094 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,102 INFO L122 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 [2018-12-08 23:47:25,102 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,102 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,102 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,103 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,104 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,107 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,107 INFO L122 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 [2018-12-08 23:47:25,108 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,108 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,108 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,108 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,108 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,108 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,109 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-12-08 23:47:25,109 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,109 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,109 INFO L122 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 [2018-12-08 23:47:25,110 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,110 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,110 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,110 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,110 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-12-08 23:47:25,111 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-12-08 23:47:25,111 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-12-08 23:47:25,114 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,114 INFO L497 LassoAnalysis]: Using template '3-phase'. [2018-12-08 23:47:25,115 INFO L122 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 [2018-12-08 23:47:25,115 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,115 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-12-08 23:47:25,115 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,116 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,116 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,117 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,117 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,132 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,133 INFO L122 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 [2018-12-08 23:47:25,133 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,133 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-12-08 23:47:25,134 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,134 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,134 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,135 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,135 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,140 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,140 INFO L122 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 [2018-12-08 23:47:25,140 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,141 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-12-08 23:47:25,141 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,141 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,141 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,141 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,142 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 23:47:25,142 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,143 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,143 INFO L122 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 [2018-12-08 23:47:25,143 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,143 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-12-08 23:47:25,144 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,144 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,144 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,145 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,145 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,148 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,148 INFO L497 LassoAnalysis]: Using template '4-phase'. [2018-12-08 23:47:25,149 INFO L122 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 [2018-12-08 23:47:25,149 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,149 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,149 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,150 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,152 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,152 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,165 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,166 INFO L122 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 [2018-12-08 23:47:25,166 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,166 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,166 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,166 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,167 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,168 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,168 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,172 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,172 INFO L122 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 [2018-12-08 23:47:25,173 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,173 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,173 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,173 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,173 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,173 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,174 INFO L402 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2018-12-08 23:47:25,174 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,174 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,175 INFO L122 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 [2018-12-08 23:47:25,175 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,175 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,175 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,175 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,175 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-12-08 23:47:25,177 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-12-08 23:47:25,177 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-12-08 23:47:25,180 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,181 INFO L497 LassoAnalysis]: Using template '2-lex'. [2018-12-08 23:47:25,181 INFO L122 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 [2018-12-08 23:47:25,181 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,181 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,181 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,181 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,182 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,182 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,183 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,191 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,191 INFO L122 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 [2018-12-08 23:47:25,192 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,192 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,192 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,192 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,192 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,193 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,193 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,195 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,195 INFO L122 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 [2018-12-08 23:47:25,196 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,196 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,196 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,196 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,196 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,196 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,196 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-12-08 23:47:25,196 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,197 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,197 INFO L122 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 [2018-12-08 23:47:25,198 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,198 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-12-08 23:47:25,198 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,198 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,198 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-12-08 23:47:25,199 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-12-08 23:47:25,199 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-12-08 23:47:25,200 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,201 INFO L497 LassoAnalysis]: Using template '3-lex'. [2018-12-08 23:47:25,201 INFO L122 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 [2018-12-08 23:47:25,201 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,201 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,201 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,201 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,201 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-12-08 23:47:25,203 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-12-08 23:47:25,203 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-12-08 23:47:25,228 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,229 INFO L122 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 [2018-12-08 23:47:25,229 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,229 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,229 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,229 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,229 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-12-08 23:47:25,230 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-12-08 23:47:25,230 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-12-08 23:47:25,233 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,234 INFO L122 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 [2018-12-08 23:47:25,234 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,234 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,234 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 23:47:25,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,235 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-12-08 23:47:25,235 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 23:47:25,235 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 23:47:25,236 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,236 INFO L122 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 [2018-12-08 23:47:25,237 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-12-08 23:47:25,237 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-12-08 23:47:25,237 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 23:47:25,237 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 23:47:25,237 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-12-08 23:47:25,238 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-12-08 23:47:25,238 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-12-08 23:47:25,241 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 23:47:25,241 INFO L488 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2018-12-08 23:47:25,241 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-12-08 23:47:25,241 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-12-08 23:47:25,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:25,241 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2018-12-08 23:47:25,242 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:25,242 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:25,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,242 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:25,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,245 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:25,245 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2018-12-08 23:47:25,245 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:25,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:25,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,246 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:25,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,248 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 23:47:25,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2018-12-08 23:47:25,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 23:47:25,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 23:47:25,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,249 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 23:47:25,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 23:47:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 23:47:25,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 11:47:25 BoogieIcfgContainer [2018-12-08 23:47:25,298 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 23:47:25,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 23:47:25,299 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 23:47:25,299 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 23:47:25,299 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:47:23" (3/4) ... [2018-12-08 23:47:25,301 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-12-08 23:47:25,325 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a1c2fda0-a8c3-4f26-99ea-ce112a9be60f/bin-2019/uautomizer/witness.graphml [2018-12-08 23:47:25,325 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 23:47:25,326 INFO L168 Benchmark]: Toolchain (without parser) took 1779.25 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 962.4 MB in the beginning and 745.7 MB in the end (delta: 216.7 MB). Peak memory consumption was 292.8 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:25,327 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:25,327 INFO L168 Benchmark]: CACSL2BoogieTranslator took 111.54 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:25,327 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.30 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:25,327 INFO L168 Benchmark]: Boogie Preprocessor took 10.30 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:25,328 INFO L168 Benchmark]: RCFGBuilder took 123.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -110.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:25,328 INFO L168 Benchmark]: BuchiAutomizer took 1487.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 745.7 MB in the end (delta: 316.4 MB). Peak memory consumption was 316.4 MB. Max. memory is 11.5 GB. [2018-12-08 23:47:25,328 INFO L168 Benchmark]: Witness Printer took 26.92 ms. Allocated memory is still 1.1 GB. Free memory is still 745.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 23:47:25,330 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 111.54 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.30 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.30 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 123.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 76.0 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -110.4 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1487.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 745.7 MB in the end (delta: 316.4 MB). Peak memory consumption was 316.4 MB. Max. memory is 11.5 GB. * Witness Printer took 26.92 ms. Allocated memory is still 1.1 GB. Free memory is still 745.7 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 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 1.4s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: 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, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...