./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f560e32afd5a40adf4a98abbf810cb377947c4f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 23:14:53,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:14:53,024 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:14:53,037 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:14:53,037 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:14:53,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:14:53,040 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:14:53,042 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:14:53,047 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:14:53,048 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:14:53,050 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:14:53,054 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:14:53,055 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:14:53,058 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:14:53,059 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:14:53,061 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:14:53,062 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:14:53,064 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:14:53,068 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:14:53,070 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:14:53,071 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:14:53,073 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:14:53,075 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:14:53,076 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:14:53,076 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:14:53,077 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:14:53,078 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:14:53,079 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:14:53,080 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:14:53,081 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:14:53,082 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:14:53,082 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:14:53,083 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:14:53,083 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:14:53,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:14:53,085 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:14:53,085 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:14:53,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:14:53,112 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:14:53,113 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:14:53,113 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:14:53,113 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:14:53,115 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:14:53,115 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:14:53,116 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:14:53,116 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:14:53,116 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:14:53,117 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:14:53,118 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:14:53,118 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:14:53,118 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:14:53,118 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:14:53,118 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:14:53,118 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:14:53,119 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:14:53,119 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:14:53,119 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:14:53,119 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:14:53,119 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:14:53,119 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:14:53,123 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:14:53,123 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:14:53,123 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:14:53,124 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:14:53,124 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:14:53,126 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:14:53,127 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2018-11-28 23:14:53,192 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:14:53,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:14:53,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:14:53,212 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:14:53,213 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:14:53,214 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-28 23:14:53,274 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e140a6f/fc21e756fbdf42d5abdd03462d71329b/FLAGed3133d43 [2018-11-28 23:14:53,703 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:14:53,704 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-28 23:14:53,711 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e140a6f/fc21e756fbdf42d5abdd03462d71329b/FLAGed3133d43 [2018-11-28 23:14:54,076 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81e140a6f/fc21e756fbdf42d5abdd03462d71329b [2018-11-28 23:14:54,080 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:14:54,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:14:54,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:54,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:14:54,088 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:14:54,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f533566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54, skipping insertion in model container [2018-11-28 23:14:54,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:14:54,120 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:14:54,350 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:54,355 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:14:54,377 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:54,396 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:14:54,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54 WrapperNode [2018-11-28 23:14:54,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:54,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:54,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:14:54,398 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:14:54,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:54,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:14:54,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:14:54,443 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:14:54,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (1/1) ... [2018-11-28 23:14:54,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:14:54,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:14:54,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:14:54,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:14:54,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (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 23:14:54,611 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:14:54,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:14:54,910 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:14:54,910 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:14:54,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:54 BoogieIcfgContainer [2018-11-28 23:14:54,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:14:54,912 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:14:54,912 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:14:54,916 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:14:54,917 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:54,917 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:14:54" (1/3) ... [2018-11-28 23:14:54,918 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7b3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:54, skipping insertion in model container [2018-11-28 23:14:54,918 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:54,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:54" (2/3) ... [2018-11-28 23:14:54,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@df7b3c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:54, skipping insertion in model container [2018-11-28 23:14:54,919 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:54,919 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:54" (3/3) ... [2018-11-28 23:14:54,921 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-28 23:14:55,016 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:14:55,017 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:14:55,017 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:14:55,017 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:14:55,018 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:14:55,018 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:14:55,018 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:14:55,018 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:14:55,018 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:14:55,041 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:14:55,085 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:55,085 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:55,085 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:55,102 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:14:55,106 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:55,106 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:14:55,106 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:14:55,107 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:55,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:55,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:55,110 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:14:55,110 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:55,131 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 8#L20-2true [2018-11-28 23:14:55,131 INFO L796 eck$LassoCheckResult]: Loop: 8#L20-2true assume !!(main_~i~0 > 0); 10#L20true assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 8#L20-2true [2018-11-28 23:14:55,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:55,140 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 23:14:55,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:55,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:55,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:55,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:55,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:55,256 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:55,256 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-28 23:14:55,256 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:55,256 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:55,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:55,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:55,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:55,269 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:55,270 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-28 23:14:55,270 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:55,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:55,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:55,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:55,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:55,379 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 23:14:55,381 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:14:55,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:14:55,438 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:55,439 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:55,439 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:55,440 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:55,440 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:55,440 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:55,440 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:55,440 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:55,440 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:14:55,441 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:55,441 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:55,467 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 23:14:55,510 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 23:14:55,527 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:55,680 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:55,681 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 23:14:55,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:55,689 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 23:14:55,728 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:55,728 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:55,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:55,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:55,757 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:55,757 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:55,766 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:55,766 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2018-11-28 23:14:55,791 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:55,791 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:55,820 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:55,822 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:55,822 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:55,822 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:55,822 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:55,822 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:55,822 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:55,823 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:55,823 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:55,823 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:14:55,823 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:55,823 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:55,829 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 23:14:55,857 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 23:14:55,893 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 23:14:56,011 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-28 23:14:56,205 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:56,212 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:56,213 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 23:14:56,215 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:56,216 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:56,216 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:56,216 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:56,221 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:56,221 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:56,228 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:56,229 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:14:56,230 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:56,230 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:56,230 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:56,230 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:56,233 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:56,233 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:56,242 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:56,243 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 23:14:56,244 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:56,244 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:56,244 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:56,245 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:56,245 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:56,246 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:56,246 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:56,254 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:56,259 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:14:56,260 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:14:56,262 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:56,262 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:14:56,262 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:56,263 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 23:14:56,264 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:14:56,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:56,395 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:56,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:56,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:56,480 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 23:14:56,495 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 23:14:56,497 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:14:56,558 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 8 states. [2018-11-28 23:14:56,559 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 23:14:56,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:56,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 16 transitions. [2018-11-28 23:14:56,563 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:14:56,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:56,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:14:56,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:56,565 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 23:14:56,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:56,566 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-28 23:14:56,570 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:56,574 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-28 23:14:56,575 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:14:56,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 23:14:56,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 23:14:56,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:14:56,577 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:14:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 23:14:56,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-28 23:14:56,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 23:14:56,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-28 23:14:56,603 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:14:56,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:14:56,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:14:56,607 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. Second operand 3 states. [2018-11-28 23:14:56,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:14:56,709 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2018-11-28 23:14:56,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:14:56,711 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 7 states and 8 transitions. [2018-11-28 23:14:56,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:56,713 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 7 states to 6 states and 7 transitions. [2018-11-28 23:14:56,713 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 23:14:56,713 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 23:14:56,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-11-28 23:14:56,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:14:56,714 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 23:14:56,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-11-28 23:14:56,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-11-28 23:14:56,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:14:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-28 23:14:56,718 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 23:14:56,718 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-28 23:14:56,718 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:14:56,718 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-28 23:14:56,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:56,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:56,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:56,722 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:14:56,722 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:56,722 INFO L794 eck$LassoCheckResult]: Stem: 92#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 93#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 94#L20-2 assume !!(main_~i~0 > 0); 97#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 95#L20-2 [2018-11-28 23:14:56,722 INFO L796 eck$LassoCheckResult]: Loop: 95#L20-2 assume !!(main_~i~0 > 0); 96#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 95#L20-2 [2018-11-28 23:14:56,723 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:56,723 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-28 23:14:56,724 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:56,724 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:56,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:56,732 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,765 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:56,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-28 23:14:56,765 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:56,765 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:56,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:56,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:56,782 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2018-11-28 23:14:56,782 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:56,782 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:56,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,785 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:14:56,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:56,847 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:56,847 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:56,847 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:56,847 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:56,847 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:56,848 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:56,848 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:56,848 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:56,848 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:14:56,848 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:56,848 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:56,851 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 23:14:56,855 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 23:14:56,860 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 23:14:56,963 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:56,963 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:56,967 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:56,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:56,991 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:56,991 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:56,998 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:56,998 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:57,019 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:57,019 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 23:14:57,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:57,024 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:14:57,052 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:57,052 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:57,078 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:57,081 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:57,081 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:57,081 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:57,081 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:57,081 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:57,081 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:57,082 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:57,082 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:57,082 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:14:57,082 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:57,082 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:57,084 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 23:14:57,095 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 23:14:57,099 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 23:14:57,323 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-28 23:14:57,325 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:57,325 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:57,325 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 23:14:57,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:57,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:57,327 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:57,327 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:57,332 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:57,332 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:57,339 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:57,341 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 23:14:57,343 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:57,345 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:57,346 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:57,346 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:57,354 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:57,354 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:57,371 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:57,372 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 23:14:57,372 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:57,373 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:57,373 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:57,373 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:57,373 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:57,378 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:57,378 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:57,392 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:57,401 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:14:57,401 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:14:57,402 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:57,402 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:14:57,402 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:57,402 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 23:14:57,409 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:14:57,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:57,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:57,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:57,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:57,721 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:57,830 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 23:14:57,831 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 23:14:57,831 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-11-28 23:14:57,846 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 5 states. [2018-11-28 23:14:57,848 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 23:14:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:14:57,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:14:57,849 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:57,849 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:14:57,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:57,850 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 23:14:57,850 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:57,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2018-11-28 23:14:57,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:57,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 10 states and 13 transitions. [2018-11-28 23:14:57,852 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 23:14:57,853 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 23:14:57,853 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 13 transitions. [2018-11-28 23:14:57,853 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:14:57,853 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-28 23:14:57,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 13 transitions. [2018-11-28 23:14:57,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2018-11-28 23:14:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-28 23:14:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 13 transitions. [2018-11-28 23:14:57,855 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-28 23:14:57,855 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 13 transitions. [2018-11-28 23:14:57,855 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:14:57,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 13 transitions. [2018-11-28 23:14:57,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:57,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:57,856 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:57,857 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-11-28 23:14:57,857 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:57,857 INFO L794 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 148#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 149#L20-2 assume !!(main_~i~0 > 0); 156#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 155#L20-2 assume !!(main_~i~0 > 0); 154#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 150#L20-2 [2018-11-28 23:14:57,857 INFO L796 eck$LassoCheckResult]: Loop: 150#L20-2 assume !!(main_~i~0 > 0); 151#L20 assume main_~i~0 < main_~m~0;main_~i~0 := main_~i~0 - 1; 150#L20-2 [2018-11-28 23:14:57,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:57,858 INFO L82 PathProgramCache]: Analyzing trace with hash 920231918, now seen corresponding path program 2 times [2018-11-28 23:14:57,858 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:57,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:57,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:57,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,869 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:57,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 3 times [2018-11-28 23:14:57,869 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:57,870 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:57,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,871 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:14:57,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,875 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:57,875 INFO L82 PathProgramCache]: Analyzing trace with hash -420389359, now seen corresponding path program 2 times [2018-11-28 23:14:57,875 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:57,875 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:57,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,877 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:14:57,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:57,913 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:57,913 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:57,913 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:57,913 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:57,913 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:57,914 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:57,914 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:57,914 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:57,914 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:14:57,914 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:57,914 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:57,916 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 23:14:57,942 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 23:14:57,950 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 23:14:58,014 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:58,015 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:14:58,021 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,021 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 23:14:58,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:58,047 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:58,073 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:58,075 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:58,075 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:58,075 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:58,075 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:58,075 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:58,075 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,075 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:58,076 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:58,076 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:14:58,076 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:58,076 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:58,078 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 23:14:58,101 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 23:14:58,118 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 23:14:58,185 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:58,185 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:58,187 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 23:14:58,187 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:58,188 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:58,189 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:58,189 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:58,189 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:58,190 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:58,190 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:58,195 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:58,198 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:14:58,198 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:14:58,199 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:58,199 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:14:58,199 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:58,199 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 23:14:58,201 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:14:58,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,274 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 23:14:58,275 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 23:14:58,275 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:14:58,305 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-11-28 23:14:58,306 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 23:14:58,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:58,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:14:58,307 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:14:58,307 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:58,307 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:14:58,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,363 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 23:14:58,363 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 23:14:58,364 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:14:58,394 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-11-28 23:14:58,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:14:58,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:58,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:14:58,397 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:14:58,397 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:58,397 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:14:58,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:58,443 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:58,474 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 23:14:58,475 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 23:14:58,475 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:14:58,496 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 13 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 20 transitions. Complement of second has 4 states. [2018-11-28 23:14:58,497 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 23:14:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-28 23:14:58,498 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:14:58,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:58,499 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-28 23:14:58,499 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:58,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-28 23:14:58,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:58,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 20 transitions. [2018-11-28 23:14:58,502 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:14:58,503 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 16 transitions. [2018-11-28 23:14:58,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 23:14:58,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 23:14:58,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-11-28 23:14:58,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:14:58,504 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 23:14:58,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-11-28 23:14:58,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 7. [2018-11-28 23:14:58,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:14:58,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 23:14:58,506 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:14:58,506 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:14:58,506 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:14:58,506 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-28 23:14:58,509 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:14:58,509 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:58,509 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:58,509 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:14:58,509 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:58,510 INFO L794 eck$LassoCheckResult]: Stem: 299#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 300#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := main_~n~0; 301#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2018-11-28 23:14:58,511 INFO L796 eck$LassoCheckResult]: Loop: 302#L20 assume !(main_~i~0 < main_~m~0);main_~i~0 := main_~i~0 - main_~m~0; 305#L20-2 assume !!(main_~i~0 > 0); 302#L20 [2018-11-28 23:14:58,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,511 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-11-28 23:14:58,511 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,513 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:14:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-11-28 23:14:58,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:58,524 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,535 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,537 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 3 times [2018-11-28 23:14:58,537 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,537 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:58,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,667 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:58,667 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:58,667 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:58,667 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:58,667 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:58,667 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,668 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:58,668 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:58,668 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 23:14:58,668 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:58,668 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:58,670 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 23:14:58,673 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 23:14:58,687 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 23:14:58,690 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 23:14:58,693 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:58,697 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 23:14:58,866 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:58,866 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 23:14:58,869 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,870 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:58,873 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:58,873 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,897 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 23:14:58,939 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:58,940 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:59,169 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:59,172 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:59,172 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:59,172 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:59,172 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:59,172 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:59,172 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:59,173 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:59,173 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:59,173 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 23:14:59,173 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:59,173 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:59,175 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 23:14:59,181 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 23:14:59,185 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 23:14:59,190 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 23:14:59,192 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 23:14:59,204 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 23:14:59,288 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:59,288 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:59,289 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 23:14:59,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,290 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:59,290 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,290 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,291 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:59,293 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:59,294 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,294 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:14:59,295 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,295 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:59,295 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,295 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,298 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,298 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:59,299 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:59,299 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,300 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 23:14:59,300 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,300 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:59,300 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,302 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,302 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,303 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:59,303 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:59,303 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,306 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 23:14:59,308 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,308 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,309 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,309 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,311 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:59,311 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:59,314 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,315 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 23:14:59,316 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,316 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,316 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,316 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,320 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:59,321 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:59,350 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:59,371 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2018-11-28 23:14:59,371 INFO L444 ModelExtractionUtils]: 5 out of 13 variables were initially zero. Simplification set additionally 3 variables to zero. [2018-11-28 23:14:59,372 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:59,375 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-11-28 23:14:59,375 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:59,375 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~m~0) = 1*ULTIMATE.start_main_~i~0 - 1*ULTIMATE.start_main_~m~0 Supporting invariants [1*ULTIMATE.start_main_~m~0 - 1 >= 0] [2018-11-28 23:14:59,394 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-11-28 23:14:59,636 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:59,642 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:59,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:59,666 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:59,690 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 23:14:59,690 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 2 loop predicates [2018-11-28 23:14:59,691 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-28 23:14:59,728 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 16 transitions. Complement of second has 5 states. [2018-11-28 23:14:59,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:14:59,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-28 23:14:59,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-28 23:14:59,730 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:14:59,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:14:59,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,732 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-28 23:14:59,732 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,733 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 16 transitions. [2018-11-28 23:14:59,733 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:14:59,735 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-11-28 23:14:59,735 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:14:59,735 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:14:59,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:14:59,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:14:59,735 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:59,735 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:59,737 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:14:59,737 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:14:59,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:14:59,738 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:14:59,738 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:14:59,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:14:59 BoogieIcfgContainer [2018-11-28 23:14:59,747 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:14:59,748 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:14:59,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:14:59,748 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:14:59,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:54" (3/4) ... [2018-11-28 23:14:59,752 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:14:59,752 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:14:59,753 INFO L168 Benchmark]: Toolchain (without parser) took 5672.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 951.4 MB in the beginning and 800.4 MB in the end (delta: 151.0 MB). Peak memory consumption was 258.5 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:59,754 INFO L168 Benchmark]: CDTParser took 0.59 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 23:14:59,755 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:59,756 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:14:59,756 INFO L168 Benchmark]: Boogie Preprocessor took 25.84 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:14:59,757 INFO L168 Benchmark]: RCFGBuilder took 442.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:59,760 INFO L168 Benchmark]: BuchiAutomizer took 4835.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 800.4 MB in the end (delta: 276.6 MB). Peak memory consumption was 276.6 MB. Max. memory is 11.5 GB. [2018-11-28 23:14:59,761 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 1.1 GB. Free memory is still 800.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:14:59,766 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 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 313.47 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.96 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.84 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 442.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4835.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 800.4 MB in the end (delta: 276.6 MB). Peak memory consumption was 276.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.42 ms. Allocated memory is still 1.1 GB. Free memory is still 800.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function i and consists of 5 locations. One deterministic module has affine ranking function i and consists of 3 locations. One deterministic module has affine ranking function i + -1 * m and consists of 4 locations. One nondeterministic module has affine ranking function i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.7s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.1s. Construction of modules took 0.1s. Büchi inclusion checks took 1.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 10 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 6 SDs, 0 SdLazy, 47 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf98 lsp54 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq147 hnf94 smp100 dnf100 smp100 tf108 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 15ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...