./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_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-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:15:09,023 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:15:09,025 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:15:09,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:15:09,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:15:09,039 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:15:09,041 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:15:09,043 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:15:09,045 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:15:09,046 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:15:09,048 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:15:09,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:15:09,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:15:09,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:15:09,052 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:15:09,053 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:15:09,054 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:15:09,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:15:09,058 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:15:09,060 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:15:09,062 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:15:09,063 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:15:09,066 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:15:09,066 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:15:09,066 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:15:09,067 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:15:09,069 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:15:09,070 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:15:09,071 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:15:09,072 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:15:09,072 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:15:09,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:15:09,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:15:09,074 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:15:09,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:15:09,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:15:09,077 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:15:09,093 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:15:09,094 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:15:09,095 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:15:09,095 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:15:09,095 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:15:09,095 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:15:09,095 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:15:09,096 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:15:09,096 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:15:09,097 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:15:09,097 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:15:09,097 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:15:09,097 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:15:09,097 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:15:09,097 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:15:09,098 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:15:09,099 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:15:09,100 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:15:09,100 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:15:09,100 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:15:09,100 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:15:09,100 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:15:09,100 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:15:09,103 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:15:09,103 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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-11-28 23:15:09,139 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:15:09,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:15:09,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:15:09,159 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:15:09,159 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:15:09,160 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 23:15:09,222 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9790342af/c351e5db24dc4c94bbb2bcb26da9e72b/FLAG4af98d400 [2018-11-28 23:15:09,705 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:15:09,705 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 23:15:09,712 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9790342af/c351e5db24dc4c94bbb2bcb26da9e72b/FLAG4af98d400 [2018-11-28 23:15:10,077 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9790342af/c351e5db24dc4c94bbb2bcb26da9e72b [2018-11-28 23:15:10,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:15:10,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:15:10,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:15:10,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:15:10,090 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:15:10,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b44a59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10, skipping insertion in model container [2018-11-28 23:15:10,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,105 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:15:10,125 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:15:10,299 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:15:10,304 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:15:10,327 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:15:10,344 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:15:10,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10 WrapperNode [2018-11-28 23:15:10,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:15:10,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:15:10,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:15:10,346 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:15:10,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,382 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:15:10,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:15:10,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:15:10,383 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:15:10,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (1/1) ... [2018-11-28 23:15:10,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:15:10,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:15:10,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:15:10,407 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:15:10,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (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 23:15:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:15:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:15:10,737 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:15:10,738 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:15:10,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:10 BoogieIcfgContainer [2018-11-28 23:15:10,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:15:10,739 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:15:10,739 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:15:10,742 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:15:10,743 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:15:10,743 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:15:10" (1/3) ... [2018-11-28 23:15:10,744 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@186ed9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:15:10, skipping insertion in model container [2018-11-28 23:15:10,744 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:15:10,744 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:15:10" (2/3) ... [2018-11-28 23:15:10,745 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@186ed9fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:15:10, skipping insertion in model container [2018-11-28 23:15:10,745 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:15:10,745 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:10" (3/3) ... [2018-11-28 23:15:10,747 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-28 23:15:10,817 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:15:10,817 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:15:10,818 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:15:10,818 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:15:10,818 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:15:10,818 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:15:10,818 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:15:10,818 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:15:10,819 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:15:10,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:15:10,874 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:15:10,874 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:10,874 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:10,885 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:15:10,885 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:10,885 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:15:10,885 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:15:10,887 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:15:10,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:10,887 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:10,887 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:15:10,887 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:10,897 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L23-2true [2018-11-28 23:15:10,898 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 5#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 4#L23-2true [2018-11-28 23:15:10,905 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:10,906 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:15:10,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:10,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:10,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:10,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:10,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:10,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:11,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 23:15:11,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:11,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:11,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:11,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:11,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:11,038 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 23:15:11,038 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:11,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:11,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:11,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:11,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:11,176 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:11,177 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:11,178 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:11,178 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:11,178 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:11,178 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:11,179 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:11,179 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:11,180 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:15:11,180 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:11,180 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:11,207 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 23:15:11,227 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 23:15:11,233 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 23:15:11,258 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 23:15:11,264 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 23:15:11,268 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 23:15:11,582 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:11,583 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 23:15:11,592 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:11,592 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:11,622 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:11,622 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 23:15:11,633 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:11,633 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:11,654 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:11,655 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 23:15:11,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:11,662 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 23:15:11,686 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:11,686 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:11,710 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:11,712 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:11,712 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:11,712 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:11,713 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:11,713 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:11,713 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:11,713 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:11,713 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:11,713 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:15:11,713 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:11,714 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:11,716 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 23:15:11,735 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 23:15:11,741 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 23:15:11,757 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 23:15:11,775 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 23:15:11,781 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 23:15:12,053 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:12,058 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:12,060 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 23:15:12,062 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:12,063 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:12,063 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:12,063 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:12,069 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:12,069 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:12,079 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:12,080 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 23:15:12,080 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:12,081 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:12,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:12,082 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:12,085 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:12,085 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:12,095 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:12,096 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 23:15:12,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:12,097 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:12,098 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:12,099 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:12,099 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:12,100 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:12,100 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:12,107 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:12,112 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:12,112 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:12,114 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:12,115 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:12,115 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:12,115 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 23:15:12,117 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:12,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:12,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:12,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:12,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:12,301 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 23:15:12,303 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:15:12,376 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-11-28 23:15:12,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-28 23:15:12,385 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 23:15:12,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:12,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:15:12,387 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:12,387 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 23:15:12,388 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:12,389 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-11-28 23:15:12,393 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:15:12,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2018-11-28 23:15:12,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 23:15:12,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-28 23:15:12,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-28 23:15:12,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:12,399 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-28 23:15:12,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-28 23:15:12,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-28 23:15:12,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:15:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-11-28 23:15:12,426 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 23:15:12,426 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-28 23:15:12,427 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:15:12,427 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-11-28 23:15:12,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-28 23:15:12,428 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:12,428 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:12,428 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:15:12,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:15:12,429 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-28 23:15:12,429 INFO L796 eck$LassoCheckResult]: Loop: 82#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 83#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 87#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-28 23:15:12,429 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:12,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:15:12,430 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:12,430 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:12,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:12,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:12,442 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-11-28 23:15:12,442 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:12,443 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:12,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,444 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:12,444 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:12,453 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-11-28 23:15:12,453 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:12,453 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:12,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:12,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:12,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:12,535 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:12,535 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:12,535 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:12,535 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:12,535 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:12,536 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:12,536 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:12,536 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:12,536 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:15:12,536 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:12,536 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:12,540 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 23:15:12,551 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 23:15:12,558 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 23:15:12,564 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 23:15:12,578 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 23:15:12,584 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 23:15:12,595 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 23:15:12,887 WARN L180 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:15:13,040 WARN L180 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-11-28 23:15:13,124 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:13,124 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:15:13,128 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:13,128 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:13,150 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:13,150 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 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 23:15:13,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:13,154 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:13,157 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:13,157 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:15:13,179 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:13,179 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:13,202 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:13,202 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 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 23:15:13,216 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:13,217 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:15:13,251 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:13,252 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:13,317 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:13,319 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:13,320 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:13,320 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:13,320 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:13,320 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:13,320 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:13,320 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:13,320 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:13,321 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:15:13,321 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:13,321 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:13,323 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 23:15:13,359 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 23:15:13,366 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 23:15:13,371 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 23:15:13,432 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 23:15:13,437 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 23:15:13,455 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 23:15:13,635 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:13,635 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:13,636 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 23:15:13,638 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:13,638 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:13,639 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:13,639 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:13,641 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:13,641 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:13,647 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:13,647 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 23:15:13,648 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:13,648 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:13,648 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:13,648 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:13,649 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:13,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:13,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:13,653 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:13,654 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 23:15:13,654 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:13,654 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:13,655 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:13,656 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:13,658 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:13,658 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:13,665 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:13,665 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 23:15:13,666 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:13,666 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:13,666 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:13,667 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:13,667 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:13,667 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:13,670 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:13,675 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:13,679 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:13,680 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:13,680 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:13,680 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:13,680 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:13,681 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 23:15:13,681 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:13,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:13,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:13,909 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:13,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:13,919 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:13,943 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 23:15:13,944 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 23:15:13,944 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-28 23:15:13,977 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-11-28 23:15:13,978 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 23:15:13,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:13,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-28 23:15:13,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-28 23:15:13,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:13,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-28 23:15:13,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:13,980 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-28 23:15:13,980 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:13,982 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-11-28 23:15:13,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:15:13,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2018-11-28 23:15:13,985 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 23:15:13,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-28 23:15:13,987 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2018-11-28 23:15:13,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:13,987 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2018-11-28 23:15:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2018-11-28 23:15:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-11-28 23:15:13,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 23:15:13,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2018-11-28 23:15:13,992 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-28 23:15:13,992 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-28 23:15:13,992 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:15:13,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2018-11-28 23:15:13,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-28 23:15:13,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:13,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:13,994 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:15:13,994 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:15:13,994 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 168#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-28 23:15:13,997 INFO L796 eck$LassoCheckResult]: Loop: 164#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 174#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 180#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-28 23:15:13,997 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:13,997 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 23:15:13,998 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:13,998 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:13,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:13,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:13,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,010 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,010 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-11-28 23:15:14,011 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:14,011 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:14,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:14,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,021 INFO L82 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2018-11-28 23:15:14,022 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:14,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:14,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,024 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:14,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,111 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:14,111 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:14,111 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:14,112 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:14,112 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:14,112 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:14,112 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:14,113 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:14,113 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:15:14,113 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:14,113 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:14,115 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 23:15:14,126 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 23:15:14,129 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 23:15:14,132 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 23:15:14,147 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 23:15:14,173 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 23:15:14,177 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 23:15:14,368 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:14,369 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:15:14,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:14,374 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:14,378 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:14,378 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:14,401 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:14,401 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:14,404 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:14,404 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:15:14,424 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:14,424 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:14,443 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:14,443 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:15:14,454 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:14,455 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:14,476 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:14,477 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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) [2018-11-28 23:15:14,492 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:14,492 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 23:15:14,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:14,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:14,580 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:14,582 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:14,583 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:14,583 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:14,583 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:14,583 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:14,583 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:14,583 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:14,583 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:14,583 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:15:14,584 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:14,584 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:14,585 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 23:15:14,606 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 23:15:14,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:14,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:14,629 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 23:15:14,636 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 23:15:14,642 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 23:15:14,768 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:14,768 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:14,769 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 23:15:14,769 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:14,769 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:14,770 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:14,770 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:14,770 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:14,770 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:14,773 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:14,775 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:14,775 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 23:15:14,776 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:14,778 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:14,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:14,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:14,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:14,779 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:14,779 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:14,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:14,782 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 23:15:14,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:14,783 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:14,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:14,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:14,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:14,786 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:14,786 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:14,787 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:14,788 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 23:15:14,789 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:14,789 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:14,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:14,790 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:14,790 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:14,790 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:14,790 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:14,796 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:14,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:14,800 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:14,800 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:14,800 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:14,801 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:14,802 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 23:15:14,802 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:14,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:14,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:14,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:14,871 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 23:15:14,872 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 23:15:14,872 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand 4 states. [2018-11-28 23:15:14,910 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 54 states and 85 transitions. Complement of second has 7 states. [2018-11-28 23:15:14,911 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 23:15:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 23:15:14,911 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-28 23:15:14,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:14,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:15:14,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:14,912 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-28 23:15:14,912 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:14,913 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2018-11-28 23:15:14,915 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:15:14,917 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2018-11-28 23:15:14,918 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 23:15:14,918 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-28 23:15:14,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2018-11-28 23:15:14,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:14,919 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2018-11-28 23:15:14,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2018-11-28 23:15:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-28 23:15:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-28 23:15:14,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2018-11-28 23:15:14,925 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-28 23:15:14,925 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-28 23:15:14,925 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:15:14,926 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2018-11-28 23:15:14,929 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-28 23:15:14,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:14,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:14,930 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-11-28 23:15:14,930 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-28 23:15:14,930 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 283#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 284#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 289#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 318#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-28 23:15:14,932 INFO L796 eck$LassoCheckResult]: Loop: 293#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 294#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-28 23:15:14,932 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,932 INFO L82 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2018-11-28 23:15:14,932 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:14,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:14,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:14,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,947 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,948 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2018-11-28 23:15:14,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:14,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:14,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,949 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:14,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:14,963 INFO L82 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2018-11-28 23:15:14,963 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:14,964 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:14,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,965 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:14,965 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:15,033 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:15,033 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:15,033 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:15,033 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:15,033 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:15,034 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:15,034 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:15,034 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:15,034 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:15:15,034 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:15,034 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:15,036 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 23:15:15,053 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 23:15:15,060 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 23:15:15,062 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 23:15:15,069 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 23:15:15,073 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 23:15:15,076 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 23:15:15,159 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:15,160 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:15:15,164 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:15,164 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:15,170 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:15,170 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} 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 23:15:15,190 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:15,190 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:15,194 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:15,194 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} 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 23:15:15,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:15,216 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:15,234 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:15,234 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:15:15,241 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:15,241 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:15,261 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:15,261 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 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:15,266 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:15,266 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:15,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:15,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:15,352 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:15,355 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:15,355 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:15,355 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:15,355 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:15,355 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:15,355 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:15,355 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:15,356 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:15,356 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:15:15,356 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:15,356 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:15,358 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 23:15:15,365 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 23:15:15,370 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 23:15:15,379 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 23:15:15,388 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 23:15:15,392 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 23:15:15,394 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 23:15:15,519 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:15,519 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:15,520 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 23:15:15,520 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:15,521 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:15,523 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:15,523 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:15,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:15,523 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:15,525 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:15,527 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:15,527 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 23:15:15,528 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:15,528 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:15,528 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:15,528 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:15,528 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:15,531 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:15,532 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:15,533 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:15,534 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 23:15:15,534 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:15,534 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:15,534 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:15,534 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:15,535 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:15,537 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:15,538 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:15,541 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:15,544 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:15,544 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:15,545 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:15,545 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:15,545 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:15,545 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-28 23:15:15,545 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:15,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,581 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,589 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,629 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 23:15:15,629 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 23:15:15,629 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 23:15:15,665 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 65 states and 102 transitions. Complement of second has 7 states. [2018-11-28 23:15:15,666 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 23:15:15,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:15,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-28 23:15:15,667 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:15:15,667 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:15,667 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:15,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,768 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 23:15:15,769 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-28 23:15:15,769 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 23:15:15,860 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 60 states and 95 transitions. Complement of second has 7 states. [2018-11-28 23:15:15,863 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 23:15:15,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:15,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-28 23:15:15,864 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:15:15,864 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:15,864 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:15,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:15,906 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:15,920 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 23:15:15,921 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 3 loop predicates [2018-11-28 23:15:15,921 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-28 23:15:15,950 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 88 states and 137 transitions. Complement of second has 9 states. [2018-11-28 23:15:15,952 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 23:15:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:15:15,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-28 23:15:15,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-28 23:15:15,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:15,953 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-28 23:15:15,953 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:15,954 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-28 23:15:15,954 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:15,954 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2018-11-28 23:15:15,957 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-11-28 23:15:15,958 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2018-11-28 23:15:15,958 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-28 23:15:15,958 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-28 23:15:15,958 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2018-11-28 23:15:15,958 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:15,959 INFO L705 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2018-11-28 23:15:15,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2018-11-28 23:15:15,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2018-11-28 23:15:15,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-28 23:15:15,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2018-11-28 23:15:15,964 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-28 23:15:15,964 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-28 23:15:15,964 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:15:15,964 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2018-11-28 23:15:15,965 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:15:15,965 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:15,965 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:15,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-28 23:15:15,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:15,966 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 676#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 677#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 682#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 683#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 706#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-28 23:15:15,966 INFO L796 eck$LassoCheckResult]: Loop: 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 671#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-28 23:15:15,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,967 INFO L82 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2018-11-28 23:15:15,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:15,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:15,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:15,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:15,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:15,982 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-28 23:15:15,983 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:15,984 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:15,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:15,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:15,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:15,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:15,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:15,993 INFO L82 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2018-11-28 23:15:15,993 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:15,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:15,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:15,999 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:15,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,100 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:16,100 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:16,100 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:16,100 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:16,100 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:16,101 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,101 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:16,101 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:16,101 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 23:15:16,101 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:16,101 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:16,103 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 23:15:16,106 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 23:15:16,108 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 23:15:16,112 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 23:15:16,119 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 23:15:16,125 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 23:15:16,209 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:16,209 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,212 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,212 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,231 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,231 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,235 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,255 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,255 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_9=0} Honda state: {v_rep~unnamed0~0~false_9=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,277 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,277 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_9=1} Honda state: {v_rep~unnamed0~0~true_9=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,281 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,281 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,285 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,285 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,303 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,330 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:16,330 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,352 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:16,353 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:16,353 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:16,354 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:16,354 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:16,354 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:16,354 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,354 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:16,354 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:16,354 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-28 23:15:16,354 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:16,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:16,355 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 23:15:16,364 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 23:15:16,367 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 23:15:16,370 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 23:15:16,385 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 23:15:16,389 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 23:15:16,450 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:16,450 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:16,450 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 23:15:16,451 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:16,451 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:16,451 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:16,451 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:16,452 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:16,453 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:16,455 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:16,456 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 23:15:16,456 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:16,456 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:16,456 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:16,456 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:16,456 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:16,457 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:16,457 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:16,458 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:16,458 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 23:15:16,458 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:16,459 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:16,459 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:16,459 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:16,460 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:16,460 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:16,463 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:16,464 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 23:15:16,464 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:16,464 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:16,464 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:16,464 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 23:15:16,465 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:16,465 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:15:16,465 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:16,468 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:16,468 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 23:15:16,468 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:16,468 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:16,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:16,469 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:16,469 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:16,469 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:16,469 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:16,472 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:16,473 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:16,474 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:16,474 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:16,474 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:16,474 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:16,474 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 23:15:16,475 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:16,547 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:16,555 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:16,562 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:16,575 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 23:15:16,575 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 23:15:16,575 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand 3 states. [2018-11-28 23:15:16,600 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 100 states and 153 transitions. Complement of second has 5 states. [2018-11-28 23:15:16,603 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 23:15:16,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:16,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:15:16,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:16,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:15:16,604 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:16,604 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 23:15:16,605 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:16,605 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2018-11-28 23:15:16,608 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:15:16,610 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2018-11-28 23:15:16,610 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-28 23:15:16,610 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-28 23:15:16,610 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2018-11-28 23:15:16,610 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:16,610 INFO L705 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2018-11-28 23:15:16,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2018-11-28 23:15:16,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2018-11-28 23:15:16,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-28 23:15:16,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2018-11-28 23:15:16,619 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-28 23:15:16,619 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-28 23:15:16,619 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-28 23:15:16,620 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2018-11-28 23:15:16,621 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-28 23:15:16,621 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:16,621 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:16,621 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-11-28 23:15:16,622 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:16,622 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 864#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 910#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 860#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 870#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 890#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 886#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-28 23:15:16,622 INFO L796 eck$LassoCheckResult]: Loop: 877#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 876#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-28 23:15:16,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2018-11-28 23:15:16,622 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:16,622 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:16,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,624 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:16,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:16,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-28 23:15:16,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:16,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:16,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,638 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:16,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,645 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:16,646 INFO L82 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2018-11-28 23:15:16,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:16,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:16,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,648 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:16,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:16,711 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:16,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:16,711 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:16,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:16,712 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:16,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:16,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:16,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 23:15:16,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:16,712 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:16,715 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 23:15:16,722 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 23:15:16,726 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 23:15:16,729 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 23:15:16,747 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 23:15:16,756 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 23:15:16,807 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:16,808 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,813 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,813 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,834 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,834 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,838 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,838 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,857 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,857 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,862 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,862 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,881 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,881 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 32 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 32 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,887 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:16,890 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:16,891 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 33 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 33 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:16,911 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:15:16,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:16,961 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 34 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,993 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:16,994 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:16,994 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:16,994 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:16,994 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:16,994 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:16,995 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:16,995 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:16,995 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:16,995 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-28 23:15:16,995 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:16,995 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:16,996 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 23:15:17,003 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 23:15:17,006 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 23:15:17,009 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 23:15:17,017 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 23:15:17,024 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 23:15:17,094 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:17,094 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:17,095 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 23:15:17,098 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:17,098 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:17,098 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:17,098 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:17,098 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:17,099 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:17,099 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:17,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:17,101 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 23:15:17,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:17,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:17,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:17,102 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:17,106 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:17,106 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:17,110 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:17,111 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 23:15:17,112 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:17,112 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:17,113 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:17,113 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-28 23:15:17,114 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:17,114 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:15:17,114 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:17,117 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:17,117 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 23:15:17,118 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:17,118 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:17,118 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:17,118 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:17,118 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:17,119 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:17,119 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:17,121 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:17,123 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:17,123 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:17,123 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:17,123 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:17,124 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:17,124 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 23:15:17,124 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:17,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:17,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,170 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,212 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 23:15:17,213 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 23:15:17,213 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 23:15:17,233 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-28 23:15:17,235 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 23:15:17,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:17,235 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:15:17,236 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:17,236 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:17,253 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,290 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 23:15:17,291 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 23:15:17,291 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 23:15:17,307 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-28 23:15:17,308 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 23:15:17,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:17,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:15:17,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:15:17,308 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:17,309 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:17,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:17,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,330 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:17,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:17,350 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 23:15:17,350 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 23:15:17,350 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-28 23:15:17,394 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 125 states and 192 transitions. Complement of second has 4 states. [2018-11-28 23:15:17,396 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 23:15:17,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:17,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-28 23:15:17,396 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:15:17,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:17,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-28 23:15:17,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:17,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-28 23:15:17,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:17,398 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2018-11-28 23:15:17,403 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:17,403 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2018-11-28 23:15:17,403 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:15:17,404 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:15:17,404 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:15:17,404 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:15:17,404 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:17,404 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:17,404 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:17,404 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-28 23:15:17,404 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:15:17,404 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:17,404 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:15:17,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:15:17 BoogieIcfgContainer [2018-11-28 23:15:17,414 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:15:17,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:15:17,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:15:17,415 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:15:17,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:15:10" (3/4) ... [2018-11-28 23:15:17,419 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:15:17,419 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:15:17,420 INFO L168 Benchmark]: Toolchain (without parser) took 7339.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.0 MB). Free memory was 948.7 MB in the beginning and 988.4 MB in the end (delta: -39.7 MB). Peak memory consumption was 166.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:17,421 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:17,422 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:17,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.26 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:17,423 INFO L168 Benchmark]: Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:17,424 INFO L168 Benchmark]: RCFGBuilder took 331.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:17,424 INFO L168 Benchmark]: BuchiAutomizer took 6675.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:17,425 INFO L168 Benchmark]: Witness Printer took 4.59 ms. Allocated memory is still 1.2 GB. Free memory is still 988.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:17,430 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 262.46 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 36.26 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.73 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 331.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -179.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 6675.46 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 73.4 MB). Free memory was 1.1 GB in the beginning and 988.4 MB in the end (delta: 129.0 MB). Peak memory consumption was 202.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.59 ms. Allocated memory is still 1.2 GB. Free memory is still 988.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 3 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.6s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 4.9s. Construction of modules took 0.2s. Büchi inclusion checks took 1.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 35 SDs, 0 SdLazy, 76 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 19ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 21 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...