./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/loops/terminator_02_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-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 32bit --witnessprinter.graph.data.programhash 77773b6d98c13684866533d0b64942a0b1025f7d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 23:42:08,243 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:42:08,248 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:42:08,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:42:08,265 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:42:08,267 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:42:08,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:42:08,274 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:42:08,275 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:42:08,279 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:42:08,282 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:42:08,282 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:42:08,283 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:42:08,284 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:42:08,288 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:42:08,289 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:42:08,291 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:42:08,293 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:42:08,296 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:42:08,297 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:42:08,298 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:42:08,300 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:42:08,302 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:42:08,303 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:42:08,303 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:42:08,304 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:42:08,305 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:42:08,306 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:42:08,306 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:42:08,308 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:42:08,308 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:42:08,309 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:42:08,309 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:42:08,309 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:42:08,310 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:42:08,311 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:42:08,311 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-28 23:42:08,331 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:42:08,331 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:42:08,332 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:42:08,333 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:42:08,333 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:42:08,333 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:42:08,333 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:42:08,333 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:42:08,334 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:42:08,335 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:42:08,335 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:42:08,335 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:42:08,335 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 23:42:08,335 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:42:08,335 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:42:08,336 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 23:42:08,337 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:42:08,338 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:42:08,338 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:42:08,338 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:42:08,338 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:42:08,338 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:42:08,340 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:42:08,340 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:42:08,340 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:42:08,340 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:42:08,341 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:42:08,342 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77773b6d98c13684866533d0b64942a0b1025f7d [2018-11-28 23:42:08,378 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:42:08,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:42:08,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:42:08,401 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:42:08,401 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:42:08,403 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 23:42:08,465 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817872309/77761d220bcc4f5aa43af93aa11fc9bc/FLAG5a5ceaf29 [2018-11-28 23:42:08,949 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:42:08,950 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_true-unreach-call_true-termination.i [2018-11-28 23:42:08,955 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817872309/77761d220bcc4f5aa43af93aa11fc9bc/FLAG5a5ceaf29 [2018-11-28 23:42:09,295 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/817872309/77761d220bcc4f5aa43af93aa11fc9bc [2018-11-28 23:42:09,299 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:42:09,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:42:09,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:42:09,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:42:09,307 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:42:09,308 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,311 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@afc2783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09, skipping insertion in model container [2018-11-28 23:42:09,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:42:09,340 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:42:09,537 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:42:09,541 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:42:09,567 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:42:09,588 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:42:09,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09 WrapperNode [2018-11-28 23:42:09,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:42:09,591 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:42:09,591 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:42:09,591 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:42:09,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,608 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:42:09,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:42:09,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:42:09,634 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:42:09,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (1/1) ... [2018-11-28 23:42:09,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:42:09,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:42:09,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:42:09,677 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:42:09,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (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 23:42:09,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:42:09,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:42:10,115 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:42:10,115 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-28 23:42:10,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:10 BoogieIcfgContainer [2018-11-28 23:42:10,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:42:10,117 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:42:10,117 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:42:10,120 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:42:10,120 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:10,121 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:42:09" (1/3) ... [2018-11-28 23:42:10,122 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1843aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:42:10, skipping insertion in model container [2018-11-28 23:42:10,122 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:10,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:42:09" (2/3) ... [2018-11-28 23:42:10,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1843aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:42:10, skipping insertion in model container [2018-11-28 23:42:10,124 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:42:10,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:10" (3/3) ... [2018-11-28 23:42:10,125 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_true-unreach-call_true-termination.i [2018-11-28 23:42:10,191 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:42:10,193 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:42:10,196 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:42:10,196 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:42:10,196 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:42:10,196 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:42:10,196 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:42:10,196 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:42:10,196 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:42:10,225 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:42:10,254 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:10,255 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:10,255 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:10,272 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:42:10,272 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:10,272 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:42:10,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2018-11-28 23:42:10,275 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:10,275 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:10,275 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:10,276 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:42:10,276 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:10,287 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L17true assume !!(main_~x~0 > -100); 6#L18true assume !!(main_~x~0 < 200); 7#L19true assume !!(main_~z~0 > 100); 9#L20true assume !!(main_~z~0 < 200); 11#L24-2true [2018-11-28 23:42:10,288 INFO L796 eck$LassoCheckResult]: Loop: 11#L24-2true assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 14#L24true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 11#L24-2true [2018-11-28 23:42:10,296 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 1 times [2018-11-28 23:42:10,299 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:10,300 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:10,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:10,386 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:10,448 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 1 times [2018-11-28 23:42:10,448 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:10,449 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:10,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:10,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:10,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221843, now seen corresponding path program 1 times [2018-11-28 23:42:10,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:10,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:10,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:10,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:10,599 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:10,601 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:10,601 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:10,601 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:10,601 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:10,601 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:10,601 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:10,602 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:10,602 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:42:10,602 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:10,602 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:10,627 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 23:42:10,675 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 23:42:10,681 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 23:42:10,687 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 23:42:10,998 WARN L180 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-28 23:42:11,121 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:11,122 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) [2018-11-28 23:42:11,135 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:11,136 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:11,152 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:11,152 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Honda state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} 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 23:42:11,175 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:11,175 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:11,185 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:11,185 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=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 23:42:11,206 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:11,206 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:11,239 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:11,239 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:42:11,244 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:11,244 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:42:11,272 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:11,272 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:11,297 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:11,299 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:11,299 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:11,299 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:11,299 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:11,299 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:11,300 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:11,300 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:11,300 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:11,300 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-28 23:42:11,300 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:11,300 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:11,305 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 23:42:11,347 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 23:42:11,354 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 23:42:11,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:11,526 WARN L180 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-28 23:42:11,672 WARN L180 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-11-28 23:42:11,850 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-11-28 23:42:11,851 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:11,857 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:11,860 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 23:42:11,861 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:11,861 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:11,862 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:11,862 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:11,863 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:11,866 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:11,866 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:11,879 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:11,879 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 23:42:11,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:11,884 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:11,884 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:11,884 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:11,884 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:11,885 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:11,885 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:11,890 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:11,890 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 23:42:11,894 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:11,894 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:11,894 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:11,895 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:11,895 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:11,897 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:11,897 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:11,898 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:11,899 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 23:42:11,900 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:11,901 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:11,901 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:11,902 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:11,902 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:11,903 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:11,903 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:11,915 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:11,926 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:11,926 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:42:11,929 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:11,929 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:42:11,930 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:11,930 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 23:42:11,932 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:42:12,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:12,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:12,047 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:12,075 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 23:42:12,090 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 23:42:12,091 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 3 states. [2018-11-28 23:42:12,212 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 3 states. Result 42 states and 55 transitions. Complement of second has 8 states. [2018-11-28 23:42:12,213 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 23:42:12,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:12,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2018-11-28 23:42:12,218 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:42:12,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:12,219 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:42:12,219 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:12,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 29 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:42:12,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:12,221 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 55 transitions. [2018-11-28 23:42:12,226 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:12,230 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 11 states and 14 transitions. [2018-11-28 23:42:12,231 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 23:42:12,232 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-28 23:42:12,232 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-28 23:42:12,233 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:12,233 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:42:12,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-28 23:42:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 23:42:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 23:42:12,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-28 23:42:12,261 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:42:12,261 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-28 23:42:12,262 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:42:12,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-28 23:42:12,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:12,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:12,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:12,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 23:42:12,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:12,264 INFO L794 eck$LassoCheckResult]: Stem: 105#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 106#L17 assume !!(main_~x~0 > -100); 112#L18 assume !!(main_~x~0 < 200); 113#L19 assume !!(main_~z~0 > 100); 114#L20 assume !!(main_~z~0 < 200); 115#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 111#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 107#L24-2 [2018-11-28 23:42:12,264 INFO L796 eck$LassoCheckResult]: Loop: 107#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 108#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 107#L24-2 [2018-11-28 23:42:12,264 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:12,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 1 times [2018-11-28 23:42:12,264 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:12,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:12,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:12,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:12,281 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 2 times [2018-11-28 23:42:12,281 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:12,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:12,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:12,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:12,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954034, now seen corresponding path program 1 times [2018-11-28 23:42:12,290 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:12,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:12,291 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,292 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:12,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:12,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:12,370 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:12,370 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:12,370 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:12,371 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:12,371 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:12,371 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:12,371 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:12,372 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:12,372 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:42:12,372 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:12,372 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:12,374 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 23:42:12,383 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 23:42:12,396 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:12,415 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 23:42:12,858 WARN L180 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-28 23:42:12,950 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:12,950 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:42:12,954 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:12,954 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:12,974 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:12,974 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} 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 23:42:12,980 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:12,980 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:12,992 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:12,992 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Honda state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} 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 23:42:13,012 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:13,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:13,015 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:13,016 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post4=0} Honda state: {ULTIMATE.start_main_#t~post4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,039 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:13,040 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:13,100 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:13,125 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:13,127 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:13,128 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:13,128 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:13,128 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:13,128 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:13,128 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,128 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:13,128 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:13,128 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-28 23:42:13,128 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:13,128 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:13,132 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 23:42:13,141 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 23:42:13,145 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 23:42:13,160 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 23:42:13,307 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:13,307 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:13,307 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 23:42:13,308 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:13,309 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:13,309 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:13,309 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:13,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:13,310 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:13,310 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:13,312 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:13,312 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 23:42:13,313 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:13,313 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:13,313 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:13,313 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:13,313 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:13,314 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:13,314 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:13,315 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:13,316 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 23:42:13,316 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:13,316 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:13,317 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:13,317 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:13,317 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:13,318 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:13,318 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:13,325 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:13,326 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 23:42:13,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:13,327 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:13,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:13,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:13,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:13,328 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:13,328 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:13,333 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:13,336 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:13,337 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:42:13,337 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:13,337 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:42:13,337 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:13,338 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 23:42:13,338 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:42:13,423 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:13,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:13,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:13,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:13,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:13,466 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 23:42:13,467 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 23:42:13,467 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:42:13,486 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 20 transitions. Complement of second has 5 states. [2018-11-28 23:42:13,488 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 23:42:13,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:13,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:42:13,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:42:13,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:13,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:13,489 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:13,490 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 23:42:13,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:13,490 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 20 transitions. [2018-11-28 23:42:13,491 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:13,492 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 23:42:13,492 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-28 23:42:13,492 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 23:42:13,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 20 transitions. [2018-11-28 23:42:13,492 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:13,493 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 23:42:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 20 transitions. [2018-11-28 23:42:13,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-28 23:42:13,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 23:42:13,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2018-11-28 23:42:13,495 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 23:42:13,495 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 20 transitions. [2018-11-28 23:42:13,496 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:42:13,496 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 20 transitions. [2018-11-28 23:42:13,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:42:13,497 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:13,497 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:13,497 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-28 23:42:13,497 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:13,498 INFO L794 eck$LassoCheckResult]: Stem: 179#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 180#L17 assume !!(main_~x~0 > -100); 186#L18 assume !!(main_~x~0 < 200); 187#L19 assume !!(main_~z~0 > 100); 189#L20 assume !!(main_~z~0 < 200); 190#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 185#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 188#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 191#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 181#L24-2 [2018-11-28 23:42:13,498 INFO L796 eck$LassoCheckResult]: Loop: 181#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 182#L24 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 181#L24-2 [2018-11-28 23:42:13,498 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:13,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1513954036, now seen corresponding path program 2 times [2018-11-28 23:42:13,498 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:13,499 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:13,499 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:13,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,527 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:13,528 INFO L82 PathProgramCache]: Analyzing trace with hash 1924, now seen corresponding path program 3 times [2018-11-28 23:42:13,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:13,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:13,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,529 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:13,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:13,537 INFO L82 PathProgramCache]: Analyzing trace with hash -1084083785, now seen corresponding path program 2 times [2018-11-28 23:42:13,537 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:13,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:13,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,539 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:13,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:13,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:13,608 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:13,608 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:13,608 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:13,608 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:13,608 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:13,609 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,609 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:13,609 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:13,609 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:42:13,609 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:13,609 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:13,610 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 23:42:13,619 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 23:42:13,629 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 23:42:13,632 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 23:42:13,755 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:13,756 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,759 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:13,760 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:13,779 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:13,780 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} 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 23:42:13,785 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:13,785 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2018-11-28 23:42:13,826 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:13,827 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:13,851 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:13,853 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:13,853 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:13,853 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:13,853 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:13,853 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:13,853 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:13,854 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:13,854 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:13,854 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration3_Loop [2018-11-28 23:42:13,854 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:13,854 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:13,855 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 23:42:13,860 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 23:42:13,869 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 23:42:13,873 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 23:42:14,029 WARN L180 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2018-11-28 23:42:14,055 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:14,056 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:14,056 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 23:42:14,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:14,057 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:14,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:14,057 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:14,058 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:14,058 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:14,058 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:14,059 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:14,060 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 23:42:14,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:14,060 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:14,060 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:14,061 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:14,061 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:14,061 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:14,062 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:14,065 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:14,068 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:14,068 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:42:14,068 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:14,069 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:42:14,069 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:14,069 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2018-11-28 23:42:14,069 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:42:14,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,122 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,134 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 23:42:14,135 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 23:42:14,135 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 23:42:14,154 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-11-28 23:42:14,156 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 23:42:14,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:14,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:42:14,157 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:14,158 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,158 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:42:14,168 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,210 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 23:42:14,210 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 23:42:14,210 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 23:42:14,225 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 17 states and 24 transitions. Complement of second has 5 states. [2018-11-28 23:42:14,227 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 23:42:14,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:14,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-28 23:42:14,228 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:14,228 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,228 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:42:14,250 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,285 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 23:42:14,286 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 23:42:14,286 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8 Second operand 3 states. [2018-11-28 23:42:14,304 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 20 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 19 states and 27 transitions. Complement of second has 4 states. [2018-11-28 23:42:14,309 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 23:42:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:14,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-28 23:42:14,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:42:14,310 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,310 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-28 23:42:14,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,311 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-28 23:42:14,311 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,311 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 19 states and 27 transitions. [2018-11-28 23:42:14,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:42:14,313 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 19 states to 17 states and 23 transitions. [2018-11-28 23:42:14,313 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-28 23:42:14,316 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-28 23:42:14,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 23 transitions. [2018-11-28 23:42:14,316 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:42:14,316 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 23 transitions. [2018-11-28 23:42:14,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 23 transitions. [2018-11-28 23:42:14,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 9. [2018-11-28 23:42:14,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-11-28 23:42:14,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-11-28 23:42:14,318 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-28 23:42:14,318 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-28 23:42:14,318 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:42:14,318 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 11 transitions. [2018-11-28 23:42:14,319 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:42:14,319 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:42:14,319 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:42:14,319 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-28 23:42:14,320 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:42:14,320 INFO L794 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~z~0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 379#L17 assume !!(main_~x~0 > -100); 384#L18 assume !!(main_~x~0 < 200); 385#L19 assume !!(main_~z~0 > 100); 386#L20 assume !!(main_~z~0 < 200); 380#L24-2 [2018-11-28 23:42:14,320 INFO L796 eck$LassoCheckResult]: Loop: 380#L24-2 assume !!(main_~x~0 < 100 && main_~z~0 > 100);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 382#L24 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 380#L24-2 [2018-11-28 23:42:14,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash 29742506, now seen corresponding path program 2 times [2018-11-28 23:42:14,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:14,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:14,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,322 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:14,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1926, now seen corresponding path program 1 times [2018-11-28 23:42:14,328 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:14,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:14,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,329 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:42:14,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,335 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1482221841, now seen corresponding path program 3 times [2018-11-28 23:42:14,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:42:14,336 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:42:14,336 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:42:14,337 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:42:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:42:14,394 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:14,394 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:14,395 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:14,395 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:14,395 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:42:14,395 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:14,396 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:14,396 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:14,396 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-28 23:42:14,396 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:14,396 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:14,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:14,400 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 23:42:14,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:42:14,413 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 23:42:14,421 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 23:42:14,520 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:14,520 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:14,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:14,527 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:14,533 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:14,533 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:42:14,556 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:14,556 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:14,559 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:14,559 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 23:42:14,581 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:14,581 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:14,592 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:42:14,592 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} 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 23:42:14,614 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:42:14,614 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:42:14,661 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:42:14,661 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:42:14,686 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:42:14,688 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:42:14,688 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:42:14,688 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:42:14,688 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:42:14,688 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:42:14,689 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:42:14,689 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:42:14,689 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:42:14,689 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_true-unreach-call_true-termination.i_Iteration4_Loop [2018-11-28 23:42:14,689 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:42:14,689 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:42:14,692 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 23:42:14,709 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 23:42:14,712 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 23:42:14,720 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 23:42:14,732 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 23:42:14,852 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:42:14,852 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:42:14,852 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 23:42:14,853 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:14,854 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:14,854 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:14,854 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:14,854 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:14,854 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:14,855 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:14,856 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:14,856 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 23:42:14,856 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:14,857 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:14,857 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:14,857 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:14,857 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:14,857 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:14,858 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:14,858 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:42:14,859 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 23:42:14,859 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:42:14,859 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:42:14,859 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:42:14,860 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:42:14,860 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:42:14,860 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:42:14,860 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:42:14,863 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:42:14,866 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:42:14,866 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:42:14,867 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:42:14,867 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:42:14,867 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:42:14,867 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 23:42:14,867 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:42:14,885 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:42:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,892 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:42:14,896 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:42:14,906 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 23:42:14,907 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 23:42:14,907 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 23:42:14,926 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 11 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 4 states. [2018-11-28 23:42:14,927 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 23:42:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:42:14,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 23:42:14,927 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:42:14,928 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:42:14,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,929 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:42:14,929 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:42:14,930 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2018-11-28 23:42:14,931 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:42:14,931 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-28 23:42:14,931 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:42:14,931 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:42:14,931 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:42:14,931 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:42:14,931 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:42:14,931 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:42:14,932 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:42:14,932 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:42:14,932 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:42:14,932 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:42:14,932 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:42:14,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:42:14 BoogieIcfgContainer [2018-11-28 23:42:14,940 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:42:14,940 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:42:14,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:42:14,940 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:42:14,941 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:42:10" (3/4) ... [2018-11-28 23:42:14,945 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:42:14,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:42:14,946 INFO L168 Benchmark]: Toolchain (without parser) took 5645.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 210.2 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -214.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:42:14,948 INFO L168 Benchmark]: CDTParser took 0.19 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 23:42:14,949 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:42:14,950 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.02 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. [2018-11-28 23:42:14,950 INFO L168 Benchmark]: Boogie Preprocessor took 42.41 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. [2018-11-28 23:42:14,950 INFO L168 Benchmark]: RCFGBuilder took 439.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:42:14,951 INFO L168 Benchmark]: BuchiAutomizer took 4823.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:42:14,955 INFO L168 Benchmark]: Witness Printer took 4.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:42:14,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 287.03 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 43.02 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 42.41 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 439.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -149.4 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4823.18 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 87.6 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -75.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 54 SDtfs, 53 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 0 VariablesLoop: 4 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 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...