./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/b.14_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-restricted-15/b.14_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 95b7495f0c2baf7340e092922372d61d5e360ef5 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 21:38:28,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 21:38:28,112 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 21:38:28,135 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 21:38:28,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 21:38:28,138 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 21:38:28,140 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 21:38:28,143 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 21:38:28,146 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 21:38:28,148 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 21:38:28,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 21:38:28,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 21:38:28,153 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 21:38:28,154 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 21:38:28,158 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 21:38:28,160 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 21:38:28,161 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 21:38:28,165 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 21:38:28,175 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 21:38:28,180 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 21:38:28,181 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 21:38:28,185 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 21:38:28,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 21:38:28,193 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 21:38:28,193 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 21:38:28,194 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 21:38:28,195 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 21:38:28,200 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 21:38:28,201 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 21:38:28,203 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 21:38:28,205 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 21:38:28,206 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 21:38:28,206 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 21:38:28,206 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 21:38:28,207 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 21:38:28,210 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 21:38:28,212 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 21:38:28,250 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 21:38:28,250 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 21:38:28,254 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 21:38:28,254 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 21:38:28,254 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 21:38:28,254 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 21:38:28,256 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 21:38:28,257 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 21:38:28,257 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 21:38:28,257 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 21:38:28,257 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 21:38:28,257 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 21:38:28,258 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 21:38:28,258 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 21:38:28,258 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 21:38:28,259 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 21:38:28,260 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 21:38:28,260 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 21:38:28,260 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 21:38:28,260 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 21:38:28,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 21:38:28,262 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 21:38:28,262 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 21:38:28,263 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 21:38:28,263 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 -> 95b7495f0c2baf7340e092922372d61d5e360ef5 [2019-01-01 21:38:28,338 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 21:38:28,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 21:38:28,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 21:38:28,363 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 21:38:28,364 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 21:38:28,364 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/b.14_true-termination_true-no-overflow.c [2019-01-01 21:38:28,432 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada50d1ac/c3ce66a3f9f94f51a1f0d3015b13f538/FLAG11077ca24 [2019-01-01 21:38:28,915 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 21:38:28,916 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/b.14_true-termination_true-no-overflow.c [2019-01-01 21:38:28,922 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada50d1ac/c3ce66a3f9f94f51a1f0d3015b13f538/FLAG11077ca24 [2019-01-01 21:38:29,261 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ada50d1ac/c3ce66a3f9f94f51a1f0d3015b13f538 [2019-01-01 21:38:29,265 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 21:38:29,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 21:38:29,268 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 21:38:29,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 21:38:29,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 21:38:29,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4de6a5a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29, skipping insertion in model container [2019-01-01 21:38:29,277 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 21:38:29,308 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 21:38:29,574 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:38:29,582 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 21:38:29,607 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 21:38:29,625 INFO L195 MainTranslator]: Completed translation [2019-01-01 21:38:29,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29 WrapperNode [2019-01-01 21:38:29,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 21:38:29,627 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 21:38:29,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 21:38:29,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 21:38:29,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,676 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 21:38:29,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 21:38:29,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 21:38:29,677 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 21:38:29,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (1/1) ... [2019-01-01 21:38:29,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 21:38:29,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 21:38:29,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 21:38:29,704 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 21:38:29,705 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (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 [2019-01-01 21:38:29,852 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 21:38:29,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 21:38:30,020 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 21:38:30,021 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-01 21:38:30,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:30 BoogieIcfgContainer [2019-01-01 21:38:30,021 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 21:38:30,023 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 21:38:30,023 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 21:38:30,027 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 21:38:30,029 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:30,029 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 09:38:29" (1/3) ... [2019-01-01 21:38:30,030 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2065bac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:38:30, skipping insertion in model container [2019-01-01 21:38:30,030 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:30,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 09:38:29" (2/3) ... [2019-01-01 21:38:30,031 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2065bac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 09:38:30, skipping insertion in model container [2019-01-01 21:38:30,031 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 21:38:30,031 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:30" (3/3) ... [2019-01-01 21:38:30,033 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.14_true-termination_true-no-overflow.c [2019-01-01 21:38:30,103 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 21:38:30,104 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 21:38:30,105 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 21:38:30,105 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 21:38:30,105 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 21:38:30,105 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 21:38:30,106 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 21:38:30,106 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 21:38:30,107 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 21:38:30,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-01 21:38:30,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 21:38:30,156 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:30,156 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:30,164 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:38:30,164 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 21:38:30,164 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 21:38:30,165 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-01 21:38:30,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 21:38:30,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:30,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:30,168 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:38:30,168 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 21:38:30,178 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 8#L12-3true [2019-01-01 21:38:30,180 INFO L796 eck$LassoCheckResult]: Loop: 8#L12-3true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 3#L12-2true assume !(main_~y~0 > 0); 8#L12-3true [2019-01-01 21:38:30,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:30,192 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 21:38:30,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:30,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:30,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,256 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:30,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:30,303 INFO L82 PathProgramCache]: Analyzing trace with hash 1288, now seen corresponding path program 1 times [2019-01-01 21:38:30,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:30,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:30,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,307 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:30,307 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:30,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:30,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 21:38:30,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-01 21:38:30,435 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-01 21:38:30,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 21:38:30,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 21:38:30,465 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-01-01 21:38:30,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 21:38:30,523 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-01 21:38:30,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-01 21:38:30,528 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-01-01 21:38:30,529 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:30,534 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 4 states and 5 transitions. [2019-01-01 21:38:30,535 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-01 21:38:30,535 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-01-01 21:38:30,536 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 5 transitions. [2019-01-01 21:38:30,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:38:30,537 INFO L705 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-01 21:38:30,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states and 5 transitions. [2019-01-01 21:38:30,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-01-01 21:38:30,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 21:38:30,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2019-01-01 21:38:30,570 INFO L728 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-01 21:38:30,570 INFO L608 BuchiCegarLoop]: Abstraction has 4 states and 5 transitions. [2019-01-01 21:38:30,570 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 21:38:30,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 4 states and 5 transitions. [2019-01-01 21:38:30,571 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-01 21:38:30,571 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:30,571 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:30,572 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 21:38:30,572 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-01 21:38:30,572 INFO L794 eck$LassoCheckResult]: Stem: 26#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 27#L12-3 [2019-01-01 21:38:30,572 INFO L796 eck$LassoCheckResult]: Loop: 27#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 24#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 25#L12-2 assume !(main_~y~0 > 0); 27#L12-3 [2019-01-01 21:38:30,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:30,573 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-01-01 21:38:30,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:30,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:30,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:30,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:30,582 INFO L82 PathProgramCache]: Analyzing trace with hash 40007, now seen corresponding path program 1 times [2019-01-01 21:38:30,582 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:30,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:30,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,584 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 21:38:30,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:30,612 INFO L82 PathProgramCache]: Analyzing trace with hash 963528, now seen corresponding path program 1 times [2019-01-01 21:38:30,612 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:30,612 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:30,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:30,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:30,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:30,981 WARN L181 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2019-01-01 21:38:31,039 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:31,040 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:31,040 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:31,041 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:31,041 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:38:31,041 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:31,041 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:31,041 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:31,041 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.14_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:38:31,042 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:31,042 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:31,069 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,097 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,531 WARN L181 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-01-01 21:38:31,628 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:31,629 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 [2019-01-01 21:38:31,635 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:31,635 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:31,667 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:31,667 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) [2019-01-01 21:38:31,681 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:31,681 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:31,714 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:31,714 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 [2019-01-01 21:38:31,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:31,720 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 [2019-01-01 21:38:31,749 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:31,749 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:31,780 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:31,780 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] 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 [2019-01-01 21:38:31,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:31,803 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:31,832 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:31,832 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:31,867 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:38:31,869 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:31,869 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:31,869 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:31,870 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:31,870 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:38:31,870 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:31,870 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:31,870 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:31,870 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.14_true-termination_true-no-overflow.c_Iteration2_Loop [2019-01-01 21:38:31,871 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:31,871 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:31,874 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,893 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:31,914 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:32,253 WARN L181 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2019-01-01 21:38:32,255 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:32,261 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:38:32,264 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 [2019-01-01 21:38:32,265 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:32,266 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:32,266 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:32,266 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:32,272 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:32,272 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:32,279 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:32,280 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 [2019-01-01 21:38:32,281 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:32,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:32,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:32,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:32,284 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:32,284 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:32,293 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:32,294 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 [2019-01-01 21:38:32,295 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:32,295 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:32,296 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:32,296 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:32,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:32,297 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:32,297 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:32,302 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:32,303 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 [2019-01-01 21:38:32,304 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:32,304 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:32,304 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:32,304 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:32,304 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:32,306 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:32,306 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:32,315 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:38:32,322 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:38:32,322 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 21:38:32,324 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:38:32,325 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:38:32,325 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:38:32,326 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-01-01 21:38:32,327 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:38:32,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:32,415 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:32,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:32,599 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:32,605 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 [2019-01-01 21:38:32,606 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2 Second operand 4 states. [2019-01-01 21:38:32,766 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 4 states and 5 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 17 transitions. Complement of second has 6 states. [2019-01-01 21:38:32,768 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 [2019-01-01 21:38:32,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-01 21:38:32,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-01-01 21:38:32,773 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 3 letters. [2019-01-01 21:38:32,774 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:32,776 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-01-01 21:38:32,777 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:32,777 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 1 letters. Loop has 6 letters. [2019-01-01 21:38:32,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:32,778 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2019-01-01 21:38:32,782 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:38:32,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 11 transitions. [2019-01-01 21:38:32,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 3 [2019-01-01 21:38:32,784 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2019-01-01 21:38:32,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-01-01 21:38:32,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 21:38:32,791 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-01-01 21:38:32,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-01-01 21:38:32,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-01-01 21:38:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-01 21:38:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-01-01 21:38:32,795 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 21:38:32,795 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 21:38:32,796 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 21:38:32,796 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-01-01 21:38:32,796 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-01 21:38:32,797 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 21:38:32,797 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 21:38:32,797 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2019-01-01 21:38:32,797 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-01 21:38:32,800 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0, main_~y~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~c~0 := 0; 80#L12-3 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > 0); 77#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 78#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 76#L12-2 [2019-01-01 21:38:32,801 INFO L796 eck$LassoCheckResult]: Loop: 76#L12-2 assume !!(main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1;main_~c~0 := 1 + main_~c~0; 76#L12-2 [2019-01-01 21:38:32,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:32,802 INFO L82 PathProgramCache]: Analyzing trace with hash 963530, now seen corresponding path program 1 times [2019-01-01 21:38:32,802 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:32,802 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:32,805 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,806 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:32,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:32,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:32,846 INFO L82 PathProgramCache]: Analyzing trace with hash 50, now seen corresponding path program 1 times [2019-01-01 21:38:32,846 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:32,846 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:32,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:32,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:32,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:32,868 INFO L82 PathProgramCache]: Analyzing trace with hash 29869449, now seen corresponding path program 2 times [2019-01-01 21:38:32,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 21:38:32,869 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 21:38:32,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 21:38:32,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 21:38:32,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 21:38:33,048 WARN L181 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-01 21:38:33,063 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:33,063 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:33,063 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:33,063 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:33,063 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 21:38:33,064 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,064 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:33,064 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:33,064 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.14_true-termination_true-no-overflow.c_Iteration3_Loop [2019-01-01 21:38:33,064 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:33,064 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:33,067 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,088 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,156 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,334 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:33,334 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:33,346 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:33,374 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:33,374 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,379 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:33,379 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 [2019-01-01 21:38:33,405 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:33,405 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:33,421 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:33,421 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=-3}, {ULTIMATE.start_main_~x~0=6}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 [2019-01-01 21:38:33,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:33,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:33,464 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:33,465 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 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 [2019-01-01 21:38:33,471 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:33,471 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,495 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:33,495 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:33,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 21:38:33,522 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~c~0=0} Honda state: {ULTIMATE.start_main_~c~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~c~0=0}, {ULTIMATE.start_main_~c~0=-1}, {ULTIMATE.start_main_~c~0=2}] Lambdas: [4, 3, 1] Nus: [0, 1] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 21:38:33,545 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,582 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 21:38:33,582 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 21:38:33,608 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 21:38:33,610 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 21:38:33,610 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 21:38:33,610 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 21:38:33,610 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 21:38:33,610 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 21:38:33,610 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 21:38:33,611 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 21:38:33,611 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 21:38:33,611 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.14_true-termination_true-no-overflow.c_Iteration3_Loop [2019-01-01 21:38:33,611 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 21:38:33,611 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 21:38:33,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,620 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,633 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,643 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 21:38:33,751 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 21:38:33,752 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 21:38:33,752 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 [2019-01-01 21:38:33,755 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:33,755 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:33,755 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:33,755 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:33,757 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:33,758 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:33,763 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:33,764 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 [2019-01-01 21:38:33,764 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:33,766 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:33,766 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:33,766 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:33,767 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:33,767 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:33,767 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:33,772 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:33,773 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 [2019-01-01 21:38:33,775 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:33,775 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:33,775 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:33,776 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:33,778 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 21:38:33,779 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 21:38:33,784 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:33,785 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 [2019-01-01 21:38:33,785 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:33,786 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:33,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:33,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:33,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:33,789 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:33,789 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:33,793 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 21:38:33,793 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 [2019-01-01 21:38:33,795 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 21:38:33,795 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 21:38:33,795 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 21:38:33,795 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 21:38:33,795 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 21:38:33,798 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 21:38:33,798 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 21:38:33,802 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 21:38:33,805 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 21:38:33,806 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 21:38:33,806 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 21:38:33,806 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 21:38:33,807 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 21:38:33,807 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2019-01-01 21:38:33,807 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 21:38:33,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 21:38:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:33,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:33,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 21:38:33,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 21:38:33,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 21:38:33,884 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-01-01 21:38:33,884 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 2 states. [2019-01-01 21:38:33,915 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 2 states. Result 11 states and 15 transitions. Complement of second has 4 states. [2019-01-01 21:38:33,916 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 [2019-01-01 21:38:33,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-01 21:38:33,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-01-01 21:38:33,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 1 letters. [2019-01-01 21:38:33,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:33,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 1 letters. [2019-01-01 21:38:33,917 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:33,917 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2019-01-01 21:38:33,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 21:38:33,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 15 transitions. [2019-01-01 21:38:33,919 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:38:33,919 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-01-01 21:38:33,919 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 21:38:33,919 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 21:38:33,920 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 21:38:33,920 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 21:38:33,920 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:33,920 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:33,920 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 21:38:33,920 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 21:38:33,920 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 21:38:33,920 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 21:38:33,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 21:38:33,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 09:38:33 BoogieIcfgContainer [2019-01-01 21:38:33,928 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 21:38:33,929 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 21:38:33,929 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 21:38:33,929 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 21:38:33,930 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 09:38:30" (3/4) ... [2019-01-01 21:38:33,934 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 21:38:33,934 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 21:38:33,935 INFO L168 Benchmark]: Toolchain (without parser) took 4669.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 954.0 MB in the beginning and 888.0 MB in the end (delta: 66.0 MB). Peak memory consumption was 195.0 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:33,937 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-01 21:38:33,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 942.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:33,938 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:33,939 INFO L168 Benchmark]: Boogie Preprocessor took 26.63 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:33,939 INFO L168 Benchmark]: RCFGBuilder took 318.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:33,940 INFO L168 Benchmark]: BuchiAutomizer took 3905.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.0 MB in the end (delta: 210.9 MB). Peak memory consumption was 210.9 MB. Max. memory is 11.5 GB. [2019-01-01 21:38:33,941 INFO L168 Benchmark]: Witness Printer took 5.36 ms. Allocated memory is still 1.2 GB. Free memory is still 888.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 21:38:33,946 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 359.19 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 942.0 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 48.87 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.63 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 318.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -157.0 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3905.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 888.0 MB in the end (delta: 210.9 MB). Peak memory consumption was 210.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.36 ms. Allocated memory is still 1.2 GB. Free memory is still 888.0 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 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function y and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 3.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/1 HoareTripleCheckerStatistics: 12 SDtfs, 6 SDslu, 5 SDs, 0 SdLazy, 15 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax152 hnf98 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 16ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 3 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...