./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/DivMinus2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-restricted-15/DivMinus2_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4113f10404cd50c48db8fb998633f502f8a0b01a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:16:03,589 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:16:03,590 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:16:03,602 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:16:03,602 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:16:03,603 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:16:03,605 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:16:03,607 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:16:03,610 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:16:03,613 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:16:03,614 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:16:03,615 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:16:03,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:16:03,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:16:03,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:16:03,626 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:16:03,627 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:16:03,632 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:16:03,637 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:16:03,639 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:16:03,640 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:16:03,641 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:16:03,643 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:16:03,644 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:16:03,644 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:16:03,645 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:16:03,646 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:16:03,646 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:16:03,647 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:16:03,648 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:16:03,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:16:03,649 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:16:03,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:16:03,649 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:16:03,650 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:16:03,651 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:16:03,651 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:16:03,681 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:16:03,681 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:16:03,684 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:16:03,685 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:16:03,685 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:16:03,685 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:16:03,685 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:16:03,685 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:16:03,686 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:16:03,686 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:16:03,686 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:16:03,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:16:03,686 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:16:03,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:16:03,687 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:16:03,688 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:16:03,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:16:03,688 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:16:03,688 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:16:03,688 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:16:03,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:16:03,689 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:16:03,689 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:16:03,690 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:16:03,690 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4113f10404cd50c48db8fb998633f502f8a0b01a [2018-11-28 23:16:03,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:16:03,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:16:03,764 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:16:03,766 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:16:03,766 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:16:03,767 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/DivMinus2_true-termination_true-no-overflow.c [2018-11-28 23:16:03,838 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccd3158d/41f36e3b63bd4f6ebac7c61eb5faef63/FLAG35abf188e [2018-11-28 23:16:04,319 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:16:04,321 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/DivMinus2_true-termination_true-no-overflow.c [2018-11-28 23:16:04,329 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccd3158d/41f36e3b63bd4f6ebac7c61eb5faef63/FLAG35abf188e [2018-11-28 23:16:04,675 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ccd3158d/41f36e3b63bd4f6ebac7c61eb5faef63 [2018-11-28 23:16:04,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:16:04,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:16:04,681 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:04,681 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:16:04,685 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:16:04,686 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:04,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75abdb36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04, skipping insertion in model container [2018-11-28 23:16:04,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:04,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:16:04,722 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:16:04,932 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:04,937 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:16:04,959 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:16:04,978 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:16:04,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04 WrapperNode [2018-11-28 23:16:04,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:16:04,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:04,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:16:04,980 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:16:04,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:04,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,024 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:16:05,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:16:05,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:16:05,025 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:16:05,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,038 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,042 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... [2018-11-28 23:16:05,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:16:05,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:16:05,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:16:05,052 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:16:05,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:05,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:16:05,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:16:05,379 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:16:05,380 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 23:16:05,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:05 BoogieIcfgContainer [2018-11-28 23:16:05,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:16:05,381 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:16:05,381 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:16:05,385 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:16:05,386 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:05,386 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:16:04" (1/3) ... [2018-11-28 23:16:05,387 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c12a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:05, skipping insertion in model container [2018-11-28 23:16:05,387 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:05,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:16:04" (2/3) ... [2018-11-28 23:16:05,388 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22c12a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:16:05, skipping insertion in model container [2018-11-28 23:16:05,388 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:16:05,388 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:05" (3/3) ... [2018-11-28 23:16:05,390 INFO L375 chiAutomizerObserver]: Analyzing ICFG DivMinus2_true-termination_true-no-overflow.c [2018-11-28 23:16:05,484 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:16:05,485 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:16:05,485 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:16:05,488 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:16:05,488 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:16:05,488 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:16:05,488 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:16:05,488 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:16:05,489 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:16:05,532 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 23:16:05,569 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:16:05,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:05,570 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:05,580 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:05,580 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:05,581 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:16:05,581 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-28 23:16:05,583 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:16:05,584 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:05,584 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:05,584 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:05,584 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:16:05,595 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~ytmp~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~ytmp~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 7#L14-2true [2018-11-28 23:16:05,597 INFO L796 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 3#L17-2true assume !(0 != main_~ytmp~0); 11#L16-2true main_~res~0 := 1 + main_~res~0; 7#L14-2true [2018-11-28 23:16:05,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:05,609 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:16:05,611 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:05,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:05,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:05,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:05,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:05,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:05,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:05,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:05,738 INFO L82 PathProgramCache]: Analyzing trace with hash 39957, now seen corresponding path program 1 times [2018-11-28 23:16:05,738 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:05,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:05,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:05,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:05,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:05,828 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:16:05,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:16:05,835 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-28 23:16:05,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:16:05,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:16:05,861 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2018-11-28 23:16:06,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:16:06,017 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-11-28 23:16:06,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:16:06,021 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-28 23:16:06,023 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-28 23:16:06,029 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 9 transitions. [2018-11-28 23:16:06,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 23:16:06,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:16:06,033 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 9 transitions. [2018-11-28 23:16:06,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:06,034 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:16:06,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 9 transitions. [2018-11-28 23:16:06,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-28 23:16:06,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:16:06,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 23:16:06,073 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:16:06,073 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:16:06,073 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:16:06,074 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-28 23:16:06,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-28 23:16:06,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:06,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:06,076 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:16:06,076 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-28 23:16:06,078 INFO L794 eck$LassoCheckResult]: Stem: 31#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~ytmp~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~ytmp~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 32#L14-2 [2018-11-28 23:16:06,079 INFO L796 eck$LassoCheckResult]: Loop: 32#L14-2 assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 29#L17-2 assume !!(0 != main_~ytmp~0); 30#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 33#L17-2 assume !(0 != main_~ytmp~0); 34#L16-2 main_~res~0 := 1 + main_~res~0; 32#L14-2 [2018-11-28 23:16:06,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:06,079 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 23:16:06,079 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:06,079 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:06,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:06,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:06,095 INFO L82 PathProgramCache]: Analyzing trace with hash 38452088, now seen corresponding path program 1 times [2018-11-28 23:16:06,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:06,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:06,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,101 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:06,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,129 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:06,130 INFO L82 PathProgramCache]: Analyzing trace with hash 925955769, now seen corresponding path program 1 times [2018-11-28 23:16:06,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:06,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:06,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:06,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:06,313 WARN L180 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 20 [2018-11-28 23:16:06,371 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:06,373 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:06,374 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:06,374 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:06,374 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:06,374 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:06,375 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:06,375 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:06,375 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:06,375 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:06,375 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:06,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:06,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:06,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:06,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:06,815 WARN L180 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 23:16:06,933 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:06,935 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:06,947 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:06,947 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:06,976 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:06,976 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:06,983 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:06,984 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:07,015 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:07,015 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:07,020 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:07,020 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:07,045 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:07,045 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:07,061 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:07,061 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:07,084 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:07,085 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:07,115 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:07,115 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:07,344 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:07,347 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:07,347 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:07,347 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:07,347 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:07,348 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:07,348 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:07,348 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:07,348 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:07,348 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:16:07,348 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:07,348 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:07,350 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:07,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:07,370 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:07,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:07,549 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-11-28 23:16:07,660 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:07,667 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:07,669 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 [2018-11-28 23:16:07,671 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:07,671 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:07,671 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:07,671 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:07,676 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:07,676 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:07,683 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:07,683 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 [2018-11-28 23:16:07,684 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:07,684 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:07,685 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:07,685 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:07,687 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:07,688 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:07,698 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:07,698 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 [2018-11-28 23:16:07,699 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:07,699 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:07,700 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:07,700 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:07,700 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:07,702 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:07,702 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:07,711 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:07,720 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:07,721 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-28 23:16:07,723 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:07,724 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:07,724 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:07,725 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:16:07,726 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:07,791 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:07,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:07,814 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:07,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:07,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:08,002 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 23:16:08,003 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-28 23:16:08,072 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 24 states and 33 transitions. Complement of second has 7 states. [2018-11-28 23:16:08,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:16:08,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:16:08,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-28 23:16:08,076 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 5 letters. [2018-11-28 23:16:08,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:08,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 5 letters. [2018-11-28 23:16:08,078 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:08,078 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 10 letters. [2018-11-28 23:16:08,079 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:08,079 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2018-11-28 23:16:08,082 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 23:16:08,085 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 18 states and 25 transitions. [2018-11-28 23:16:08,086 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 23:16:08,086 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 23:16:08,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 25 transitions. [2018-11-28 23:16:08,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:08,087 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 25 transitions. [2018-11-28 23:16:08,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 25 transitions. [2018-11-28 23:16:08,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2018-11-28 23:16:08,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 23:16:08,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 23 transitions. [2018-11-28 23:16:08,091 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 23:16:08,091 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 23:16:08,091 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:16:08,091 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 23 transitions. [2018-11-28 23:16:08,092 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 23:16:08,093 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:08,093 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:08,093 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 23:16:08,093 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:16:08,094 INFO L794 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~ytmp~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~ytmp~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 108#L14-2 assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 105#L17-2 assume !!(0 != main_~ytmp~0); 106#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 110#L17-2 assume !!(0 != main_~ytmp~0); 104#L17 [2018-11-28 23:16:08,094 INFO L796 eck$LassoCheckResult]: Loop: 104#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 103#L17-2 assume !!(0 != main_~ytmp~0); 104#L17 [2018-11-28 23:16:08,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:08,094 INFO L82 PathProgramCache]: Analyzing trace with hash 29869542, now seen corresponding path program 1 times [2018-11-28 23:16:08,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:08,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:08,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:08,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:08,111 INFO L82 PathProgramCache]: Analyzing trace with hash 1662, now seen corresponding path program 1 times [2018-11-28 23:16:08,111 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:08,111 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:08,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:08,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:08,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1360140509, now seen corresponding path program 2 times [2018-11-28 23:16:08,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:08,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:08,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:08,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:08,302 WARN L180 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-28 23:16:08,313 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:08,314 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:08,314 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:08,314 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:08,315 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:08,315 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:08,315 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:08,316 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:08,316 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:08,316 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:08,316 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:08,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,395 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,505 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,794 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:08,794 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:08,807 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:08,807 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:08,832 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:08,833 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:08,839 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:08,839 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:08,860 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:08,861 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2018-11-28 23:16:08,868 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:08,868 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:08,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:08,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:08,954 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:08,957 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:08,957 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:08,957 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:08,957 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:08,957 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:08,957 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:08,958 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:08,958 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:08,958 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:16:08,959 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:08,959 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:08,960 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:08,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,107 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:09,108 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:09,108 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 [2018-11-28 23:16:09,110 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:09,111 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:09,111 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:09,111 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:09,113 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:09,113 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:09,119 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:09,119 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 [2018-11-28 23:16:09,120 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:09,120 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:09,120 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:09,120 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:09,122 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:09,124 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:09,124 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:09,129 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:09,134 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:09,134 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:09,135 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:09,135 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:09,135 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:09,135 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0) = 1*ULTIMATE.start_main_~ytmp~0 Supporting invariants [] [2018-11-28 23:16:09,137 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:09,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:09,220 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:09,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:09,239 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:09,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:09,277 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:16:09,277 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 9 Second operand 3 states. [2018-11-28 23:16:09,322 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 23 transitions. cyclomatic complexity: 9. Second operand 3 states. Result 32 states and 45 transitions. Complement of second has 5 states. [2018-11-28 23:16:09,325 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 [2018-11-28 23:16:09,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:09,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-28 23:16:09,326 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:16:09,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:09,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:16:09,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:09,328 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:16:09,329 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:09,329 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 45 transitions. [2018-11-28 23:16:09,331 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 23:16:09,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 29 states and 40 transitions. [2018-11-28 23:16:09,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-28 23:16:09,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 13 [2018-11-28 23:16:09,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 29 states and 40 transitions. [2018-11-28 23:16:09,333 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:09,334 INFO L705 BuchiCegarLoop]: Abstraction has 29 states and 40 transitions. [2018-11-28 23:16:09,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states and 40 transitions. [2018-11-28 23:16:09,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2018-11-28 23:16:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 23:16:09,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 34 transitions. [2018-11-28 23:16:09,339 INFO L728 BuchiCegarLoop]: Abstraction has 24 states and 34 transitions. [2018-11-28 23:16:09,339 INFO L608 BuchiCegarLoop]: Abstraction has 24 states and 34 transitions. [2018-11-28 23:16:09,339 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:16:09,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 24 states and 34 transitions. [2018-11-28 23:16:09,342 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 23:16:09,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:09,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:09,343 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 23:16:09,343 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:16:09,343 INFO L794 eck$LassoCheckResult]: Stem: 199#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~ytmp~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~ytmp~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 200#L14-2 assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 204#L17-2 assume !!(0 != main_~ytmp~0); 215#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 214#L17-2 assume !!(0 != main_~ytmp~0); 198#L17 assume !(main_~ytmp~0 > 0);main_~ytmp~0 := 1 + main_~ytmp~0;main_~x~0 := 1 + main_~x~0; 210#L17-2 [2018-11-28 23:16:09,344 INFO L796 eck$LassoCheckResult]: Loop: 210#L17-2 assume !!(0 != main_~ytmp~0); 211#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 210#L17-2 [2018-11-28 23:16:09,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,344 INFO L82 PathProgramCache]: Analyzing trace with hash 925955826, now seen corresponding path program 1 times [2018-11-28 23:16:09,344 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:09,344 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:09,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,349 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:09,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:09,435 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:16:09,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 23:16:09,436 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:16:09,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1572, now seen corresponding path program 2 times [2018-11-28 23:16:09,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:09,439 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:09,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:16:09,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:09,507 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:09,507 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:09,507 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:09,508 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:09,508 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:09,508 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,508 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:09,509 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:09,509 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:16:09,509 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:09,509 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:09,511 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,541 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,641 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:09,641 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,648 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:09,649 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:09,673 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:09,695 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:09,697 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:09,697 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:09,697 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:09,697 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:09,698 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:09,698 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:09,698 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:09,698 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:09,698 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:16:09,698 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:09,698 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:09,700 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:09,841 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:09,841 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:09,841 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 [2018-11-28 23:16:09,842 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:09,842 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:09,842 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:09,843 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:09,845 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:09,846 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:09,846 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:09,850 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:09,853 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:09,853 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:09,854 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:09,854 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:09,854 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:09,854 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0) = 1*ULTIMATE.start_main_~ytmp~0 Supporting invariants [] [2018-11-28 23:16:09,856 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:09,904 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:09,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:09,924 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:09,941 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:09,942 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 [2018-11-28 23:16:09,942 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 24 states and 34 transitions. cyclomatic complexity: 14 Second operand 3 states. [2018-11-28 23:16:09,998 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 24 states and 34 transitions. cyclomatic complexity: 14. Second operand 3 states. Result 32 states and 47 transitions. Complement of second has 5 states. [2018-11-28 23:16:10,000 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 [2018-11-28 23:16:10,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:10,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:16:10,001 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:16:10,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:10,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:16:10,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:10,002 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 23:16:10,002 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:10,003 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 47 transitions. [2018-11-28 23:16:10,006 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-28 23:16:10,008 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 30 states and 44 transitions. [2018-11-28 23:16:10,008 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 14 [2018-11-28 23:16:10,008 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 16 [2018-11-28 23:16:10,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 44 transitions. [2018-11-28 23:16:10,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:10,009 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 44 transitions. [2018-11-28 23:16:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 44 transitions. [2018-11-28 23:16:10,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2018-11-28 23:16:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-28 23:16:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 42 transitions. [2018-11-28 23:16:10,014 INFO L728 BuchiCegarLoop]: Abstraction has 28 states and 42 transitions. [2018-11-28 23:16:10,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 23:16:10,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 23:16:10,015 INFO L87 Difference]: Start difference. First operand 28 states and 42 transitions. Second operand 4 states. [2018-11-28 23:16:10,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:16:10,041 INFO L93 Difference]: Finished difference Result 18 states and 24 transitions. [2018-11-28 23:16:10,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 23:16:10,042 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 24 transitions. [2018-11-28 23:16:10,044 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:16:10,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 14 states and 18 transitions. [2018-11-28 23:16:10,045 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 23:16:10,045 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:16:10,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 18 transitions. [2018-11-28 23:16:10,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:16:10,045 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 18 transitions. [2018-11-28 23:16:10,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 18 transitions. [2018-11-28 23:16:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2018-11-28 23:16:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:16:10,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-28 23:16:10,049 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 23:16:10,049 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-28 23:16:10,049 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:16:10,049 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-28 23:16:10,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:16:10,050 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:16:10,050 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:16:10,051 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 2, 1, 1, 1] [2018-11-28 23:16:10,051 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:16:10,051 INFO L794 eck$LassoCheckResult]: Stem: 344#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~ytmp~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~ytmp~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 345#L14-2 assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 342#L17-2 assume !!(0 != main_~ytmp~0); 343#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 346#L17-2 assume !(0 != main_~ytmp~0); 349#L16-2 main_~res~0 := 1 + main_~res~0; 347#L14-2 assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~ytmp~0 := main_~y~0; 348#L17-2 assume !!(0 != main_~ytmp~0); 351#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 350#L17-2 assume !!(0 != main_~ytmp~0); 341#L17 [2018-11-28 23:16:10,051 INFO L796 eck$LassoCheckResult]: Loop: 341#L17 assume main_~ytmp~0 > 0;main_~ytmp~0 := main_~ytmp~0 - 1;main_~x~0 := main_~x~0 - 1; 340#L17-2 assume !!(0 != main_~ytmp~0); 341#L17 [2018-11-28 23:16:10,053 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1275475969, now seen corresponding path program 2 times [2018-11-28 23:16:10,053 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:10,053 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:10,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:10,055 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:10,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:10,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:10,203 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 23:16:10,203 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 23:16:10,218 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 23:16:10,228 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-11-28 23:16:10,228 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 23:16:10,230 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:10,331 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 23:16:10,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2018-11-28 23:16:10,332 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:16:10,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:10,333 INFO L82 PathProgramCache]: Analyzing trace with hash 1662, now seen corresponding path program 3 times [2018-11-28 23:16:10,333 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:16:10,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:16:10,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:10,335 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:16:10,335 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:16:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:16:10,365 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:10,365 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:10,365 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:10,365 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:10,365 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:16:10,366 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,366 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:10,366 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:10,366 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 23:16:10,366 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:10,366 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:10,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,408 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,484 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:10,485 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,492 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,515 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:10,516 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,528 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:10,528 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=1}] Lambdas: [0, 2, 1] Nus: [1, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,551 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,551 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,572 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:10,572 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,576 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,597 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:16:10,597 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,602 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:16:10,602 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:16:10,625 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:16:10,680 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:16:10,683 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:16:10,683 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:16:10,683 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:16:10,683 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:16:10,683 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:16:10,683 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:16:10,683 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:16:10,684 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:16:10,684 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus2_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 23:16:10,684 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:16:10,684 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:16:10,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,699 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,702 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:16:10,800 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:16:10,801 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:16:10,802 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 [2018-11-28 23:16:10,802 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:10,802 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:10,805 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:10,805 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:10,805 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:10,806 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:10,806 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:10,810 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:10,811 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 [2018-11-28 23:16:10,812 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:10,812 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:10,812 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:10,812 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:10,813 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:10,814 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:10,818 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:10,819 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 [2018-11-28 23:16:10,820 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:10,822 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:10,822 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:10,822 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:10,823 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:16:10,824 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:16:10,827 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:16:10,828 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 [2018-11-28 23:16:10,828 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:16:10,828 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:16:10,829 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:16:10,829 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:16:10,829 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:16:10,830 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:16:10,830 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:16:10,833 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:16:10,836 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:16:10,836 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:16:10,836 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:16:10,837 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:16:10,837 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:16:10,837 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~ytmp~0) = 1*ULTIMATE.start_main_~ytmp~0 Supporting invariants [] [2018-11-28 23:16:10,837 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:16:10,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:10,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:10,890 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:10,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:10,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:10,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:10,924 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:16:10,924 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:16:10,940 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 20 states and 24 transitions. Complement of second has 5 states. [2018-11-28 23:16:10,941 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 [2018-11-28 23:16:10,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:10,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-28 23:16:10,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:16:10,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:10,942 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:16:10,956 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:10,970 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:10,975 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:11,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:11,019 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:16:11,019 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:16:11,056 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 19 states and 23 transitions. Complement of second has 5 states. [2018-11-28 23:16:11,058 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 [2018-11-28 23:16:11,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:11,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 23:16:11,059 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:16:11,059 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,059 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:16:11,074 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:16:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:11,086 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:16:11,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:16:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:16:11,146 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 2 loop predicates [2018-11-28 23:16:11,146 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:16:11,209 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 19 states and 24 transitions. Complement of second has 6 states. [2018-11-28 23:16:11,211 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 [2018-11-28 23:16:11,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:16:11,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 23:16:11,213 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:16:11,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 12 letters. Loop has 2 letters. [2018-11-28 23:16:11,214 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,214 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-28 23:16:11,215 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:16:11,217 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 24 transitions. [2018-11-28 23:16:11,218 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:11,218 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 0 states and 0 transitions. [2018-11-28 23:16:11,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:16:11,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:16:11,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:16:11,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:11,219 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:11,219 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:11,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 23:16:11,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-11-28 23:16:11,219 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 10 states. [2018-11-28 23:16:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:16:11,223 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:16:11,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:16:11,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:16:11,224 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:11,224 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:16:11,224 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:16:11,224 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:16:11,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:16:11,226 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:16:11,227 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:11,227 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:11,227 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:16:11,227 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:16:11,227 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:16:11,227 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:16:11,227 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:16:11,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:16:11 BoogieIcfgContainer [2018-11-28 23:16:11,236 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:16:11,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:16:11,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:16:11,236 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:16:11,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:16:05" (3/4) ... [2018-11-28 23:16:11,242 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:16:11,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:16:11,243 INFO L168 Benchmark]: Toolchain (without parser) took 6563.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 218.1 MB). Free memory was 943.3 MB in the beginning and 1.2 GB in the end (delta: -258.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,244 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,244 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.86 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:11,245 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.93 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,246 INFO L168 Benchmark]: Boogie Preprocessor took 26.99 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,246 INFO L168 Benchmark]: RCFGBuilder took 328.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:16:11,247 INFO L168 Benchmark]: BuchiAutomizer took 5854.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,252 INFO L168 Benchmark]: Witness Printer took 5.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:16:11,258 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 297.86 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 932.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.93 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.99 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 328.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -199.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5854.55 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 71.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -74.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 5.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 7 terminating modules (3 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function ytmp and consists of 3 locations. One deterministic module has affine ranking function ytmp and consists of 3 locations. One nondeterministic module has affine ranking function ytmp and consists of 3 locations. 3 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.7s and 6 iterations. TraceHistogramMax:3. Analysis of lassos took 4.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 24 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 49 SDtfs, 44 SDslu, 16 SDs, 0 SdLazy, 60 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax164 hnf100 lsp44 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq172 hnf94 smp84 dnf100 smp100 tf111 neg97 sie108 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...