./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-restricted-15/NO_23_false-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 cee692bfa384f30ecd519bc2dc9dfe35c80a4941 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:17:19,994 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:17:19,997 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:17:20,009 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:17:20,010 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:17:20,011 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:17:20,012 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:17:20,021 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:17:20,023 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:17:20,024 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:17:20,024 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:17:20,025 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:17:20,026 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:17:20,027 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:17:20,028 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:17:20,029 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:17:20,029 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:17:20,033 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:17:20,038 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:17:20,040 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:17:20,041 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:17:20,046 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:17:20,049 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:17:20,052 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:17:20,052 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:17:20,053 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:17:20,054 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:17:20,057 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:17:20,058 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:17:20,059 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:17:20,060 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:17:20,062 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:17:20,064 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:17:20,064 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:17:20,065 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:17:20,066 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:17:20,066 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:17:20,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:17:20,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:17:20,086 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:17:20,086 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:17:20,086 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:17:20,087 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:17:20,087 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:17:20,087 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:17:20,088 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:17:20,088 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:17:20,088 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:17:20,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:17:20,088 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:17:20,088 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:17:20,089 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:17:20,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:17:20,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:17:20,092 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:17:20,092 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:17:20,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:17:20,092 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:17:20,093 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:17:20,094 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:17:20,094 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 -> cee692bfa384f30ecd519bc2dc9dfe35c80a4941 [2018-11-28 23:17:20,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:17:20,144 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:17:20,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:17:20,150 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:17:20,151 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:17:20,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c [2018-11-28 23:17:20,210 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a56c509a/b37cd9bc780842dc9eb236d3113afb67/FLAG2b7ba43fd [2018-11-28 23:17:20,647 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:17:20,648 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/NO_23_false-termination_true-no-overflow.c [2018-11-28 23:17:20,655 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a56c509a/b37cd9bc780842dc9eb236d3113afb67/FLAG2b7ba43fd [2018-11-28 23:17:21,020 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a56c509a/b37cd9bc780842dc9eb236d3113afb67 [2018-11-28 23:17:21,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:17:21,026 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:17:21,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:21,027 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:17:21,031 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:17:21,032 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460492eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21, skipping insertion in model container [2018-11-28 23:17:21,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:17:21,066 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:17:21,309 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:21,318 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:17:21,339 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:21,356 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:17:21,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21 WrapperNode [2018-11-28 23:17:21,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:21,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:21,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:17:21,358 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:17:21,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,397 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:21,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:17:21,398 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:17:21,398 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:17:21,409 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,420 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:17:21,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:17:21,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:17:21,423 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:17:21,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (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 23:17:21,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:17:21,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:17:21,760 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:17:21,761 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:17:21,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21 BoogieIcfgContainer [2018-11-28 23:17:21,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:17:21,762 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:17:21,762 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:17:21,766 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:17:21,767 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,768 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:17:21" (1/3) ... [2018-11-28 23:17:21,769 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33030b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:21, skipping insertion in model container [2018-11-28 23:17:21,769 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (2/3) ... [2018-11-28 23:17:21,770 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@33030b4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:21, skipping insertion in model container [2018-11-28 23:17:21,770 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,770 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21" (3/3) ... [2018-11-28 23:17:21,774 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_23_false-termination_true-no-overflow.c [2018-11-28 23:17:21,859 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:17:21,860 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:17:21,860 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:17:21,860 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:17:21,860 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:17:21,860 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:17:21,861 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:17:21,861 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:17:21,861 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:17:21,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 23:17:21,912 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:21,912 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:21,912 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:21,921 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:21,921 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:17:21,921 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:17:21,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-28 23:17:21,922 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:21,923 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:21,924 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:21,924 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:21,924 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:17:21,934 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 7#L10-2true [2018-11-28 23:17:21,935 INFO L796 eck$LassoCheckResult]: Loop: 7#L10-2true assume !!(main_~i~0 < 100); 3#L10true assume main_~i~0 < 50;main_~i~0 := 51; 7#L10-2true [2018-11-28 23:17:21,946 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:21,946 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:17:21,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:21,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:22,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:22,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:22,097 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-28 23:17:22,097 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:22,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:22,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:22,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:22,118 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-28 23:17:22,118 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:22,118 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:22,120 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:22,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:22,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,286 WARN L180 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-11-28 23:17:22,369 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:22,371 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:22,371 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:22,371 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:22,372 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:22,372 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:22,372 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:22,372 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:22,372 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:17:22,372 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:22,374 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:22,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:22,444 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 23:17:22,458 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:22,613 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:22,614 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:22,623 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:22,623 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:22,649 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:22,650 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 23:17:22,656 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:22,657 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:22,681 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:22,681 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 23:17:22,685 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:22,685 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:22,714 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:22,714 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:22,765 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:22,767 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:22,767 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:22,767 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:22,767 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:22,767 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:22,768 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:22,768 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:22,768 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:22,768 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:17:22,769 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:22,769 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:22,771 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 23:17:22,804 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 23:17:22,886 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 23:17:23,149 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:23,155 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:23,156 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 23:17:23,158 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:23,158 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:23,158 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:23,159 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:23,164 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:23,164 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:23,175 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:23,175 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 23:17:23,176 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:23,176 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:23,177 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:23,177 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:23,177 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:23,178 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:23,178 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:23,186 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:23,192 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:17:23,193 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:17:23,195 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:23,195 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:23,195 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:23,196 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-11-28 23:17:23,197 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:23,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:23,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:23,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:23,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:23,311 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 23:17:23,326 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:23,328 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-28 23:17:23,483 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2018-11-28 23:17:23,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:17:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:23,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-28 23:17:23,489 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 23:17:23,490 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:23,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:17:23,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:23,491 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-28 23:17:23,491 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:23,492 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-28 23:17:23,497 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:23,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-28 23:17:23,503 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 23:17:23,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:17:23,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-28 23:17:23,504 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:23,504 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:17:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-28 23:17:23,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-28 23:17:23,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:17:23,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-28 23:17:23,529 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:17:23,529 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-28 23:17:23,529 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:17:23,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-28 23:17:23,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:23,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:23,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:23,531 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:17:23,531 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:17:23,531 INFO L794 eck$LassoCheckResult]: Stem: 67#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 68#L10-2 assume !!(main_~i~0 < 100); 63#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 64#L10-2 [2018-11-28 23:17:23,531 INFO L796 eck$LassoCheckResult]: Loop: 64#L10-2 assume !!(main_~i~0 < 100); 69#L10 assume main_~i~0 < 50;main_~i~0 := 51; 64#L10-2 [2018-11-28 23:17:23,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:23,532 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-28 23:17:23,532 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:23,532 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:23,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:23,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:23,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:23,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:23,581 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 23:17:23,583 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:17:23,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-11-28 23:17:23,585 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:17:23,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:23,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-28 23:17:23,586 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:23,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:23,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:23,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:23,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:23,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:23,705 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:23,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:23,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:23,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:23,706 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:23,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:23,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:23,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:23,707 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:17:23,707 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:23,707 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:23,709 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:23,717 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 23:17:23,728 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 23:17:23,893 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:23,893 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 23:17:23,897 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:23,898 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:23,922 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:23,922 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 23:17:23,927 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:23,927 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 23:17:23,952 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:23,952 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:24,002 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:24,004 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:24,005 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:24,005 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:24,005 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:24,005 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:24,005 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:24,006 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:24,006 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:24,006 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:17:24,006 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:24,006 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:24,011 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 23:17:24,022 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 23:17:24,029 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 23:17:24,083 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:24,083 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:24,084 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 23:17:24,085 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:24,085 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:24,086 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:24,086 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:24,086 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:24,087 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:24,087 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:24,094 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:24,099 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:17:24,099 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:17:24,100 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:24,100 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:24,100 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:24,100 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-11-28 23:17:24,101 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:24,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:24,167 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:24,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:24,174 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 23:17:24,175 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:24,176 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:17:24,196 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-11-28 23:17:24,197 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 23:17:24,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:24,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:17:24,198 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:17:24,202 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:24,202 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:17:24,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:24,203 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-28 23:17:24,203 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:24,203 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-28 23:17:24,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:24,206 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 23:17:24,206 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-28 23:17:24,207 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:17:24,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-28 23:17:24,207 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:24,207 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 23:17:24,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-28 23:17:24,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 23:17:24,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 23:17:24,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-28 23:17:24,210 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-28 23:17:24,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:17:24,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:17:24,214 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 3 states. [2018-11-28 23:17:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:17:24,232 INFO L93 Difference]: Finished difference Result 13 states and 17 transitions. [2018-11-28 23:17:24,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:17:24,233 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 17 transitions. [2018-11-28 23:17:24,234 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:24,235 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 12 states and 16 transitions. [2018-11-28 23:17:24,235 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 23:17:24,235 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:17:24,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 16 transitions. [2018-11-28 23:17:24,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:24,236 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 16 transitions. [2018-11-28 23:17:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 16 transitions. [2018-11-28 23:17:24,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2018-11-28 23:17:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 23:17:24,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2018-11-28 23:17:24,238 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-11-28 23:17:24,238 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 15 transitions. [2018-11-28 23:17:24,238 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:17:24,238 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 15 transitions. [2018-11-28 23:17:24,239 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:17:24,239 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:24,239 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:24,240 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1] [2018-11-28 23:17:24,240 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:17:24,240 INFO L794 eck$LassoCheckResult]: Stem: 143#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 144#L10-2 assume !!(main_~i~0 < 100); 145#L10 assume main_~i~0 < 50;main_~i~0 := 51; 149#L10-2 assume !!(main_~i~0 < 100); 139#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 140#L10-2 assume !!(main_~i~0 < 100); 146#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 148#L10-2 [2018-11-28 23:17:24,240 INFO L796 eck$LassoCheckResult]: Loop: 148#L10-2 assume !!(main_~i~0 < 100); 147#L10 assume main_~i~0 < 50;main_~i~0 := 51; 148#L10-2 [2018-11-28 23:17:24,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:24,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1366043347, now seen corresponding path program 1 times [2018-11-28 23:17:24,241 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:24,241 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:24,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:24,243 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:24,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:24,290 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-28 23:17:24,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:17:24,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 23:17:24,290 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 23:17:24,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:24,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-28 23:17:24,291 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:24,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:24,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:24,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:24,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:24,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:24,462 WARN L180 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-11-28 23:17:24,551 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:24,551 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:24,551 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:24,551 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:24,551 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:24,552 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:24,552 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:24,552 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:24,552 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:17:24,552 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:24,552 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:24,554 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 23:17:24,592 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 23:17:24,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:24,807 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:24,808 INFO L412 LassoAnalysis]: Checking for nontermination... 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 23:17:24,812 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:24,812 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:24,833 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:17:24,833 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 23:17:24,840 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:24,840 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 23:17:24,867 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:24,867 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:24,931 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:24,933 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:24,933 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:24,934 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:24,934 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:24,934 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:24,934 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:24,934 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:24,934 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:24,934 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:17:24,935 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:24,935 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:24,936 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 23:17:24,941 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 23:17:24,951 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 23:17:25,058 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:25,059 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:25,059 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 23:17:25,061 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,061 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,061 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,061 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,064 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:25,064 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:25,071 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,072 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 23:17:25,072 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,072 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:25,073 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,073 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,073 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,074 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:25,074 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:25,078 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:17:25,082 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:17:25,082 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-28 23:17:25,083 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:17:25,083 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:17:25,083 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:17:25,083 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 + 50 Supporting invariants [] [2018-11-28 23:17:25,084 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:17:25,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,188 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,197 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,197 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 23:17:25,198 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:25,198 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 23:17:25,218 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2018-11-28 23:17:25,219 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 23:17:25,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:25,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:17:25,220 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:17:25,220 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:25,220 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:25,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,272 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 23:17:25,272 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-28 23:17:25,273 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 23:17:25,288 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 13 states and 19 transitions. Complement of second has 5 states. [2018-11-28 23:17:25,289 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 23:17:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:25,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:17:25,290 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:17:25,290 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:25,290 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:17:25,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,317 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:17:25,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:17:25,324 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 23:17:25,325 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 1 loop predicates [2018-11-28 23:17:25,325 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-11-28 23:17:25,355 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 15 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 15 states and 22 transitions. Complement of second has 4 states. [2018-11-28 23:17:25,355 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 23:17:25,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:17:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 23:17:25,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:17:25,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:25,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-28 23:17:25,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:25,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-28 23:17:25,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:17:25,358 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 22 transitions. [2018-11-28 23:17:25,359 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:17:25,360 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 18 transitions. [2018-11-28 23:17:25,360 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:17:25,361 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-28 23:17:25,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 18 transitions. [2018-11-28 23:17:25,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:25,361 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-11-28 23:17:25,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 18 transitions. [2018-11-28 23:17:25,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 6. [2018-11-28 23:17:25,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-28 23:17:25,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-28 23:17:25,364 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 23:17:25,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 23:17:25,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 23:17:25,365 INFO L87 Difference]: Start difference. First operand 6 states and 8 transitions. Second operand 3 states. [2018-11-28 23:17:25,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:17:25,414 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-11-28 23:17:25,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 23:17:25,415 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-28 23:17:25,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-28 23:17:25,416 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 7 states and 8 transitions. [2018-11-28 23:17:25,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 23:17:25,416 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-28 23:17:25,416 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-28 23:17:25,416 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:17:25,416 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-28 23:17:25,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-28 23:17:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 5. [2018-11-28 23:17:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 23:17:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 6 transitions. [2018-11-28 23:17:25,419 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 23:17:25,419 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 6 transitions. [2018-11-28 23:17:25,419 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:17:25,419 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 6 transitions. [2018-11-28 23:17:25,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-28 23:17:25,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:25,420 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:25,420 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:25,420 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1] [2018-11-28 23:17:25,421 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 [2018-11-28 23:17:25,421 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-11-28 23:17:25,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,421 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2018-11-28 23:17:25,421 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:25,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:25,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,423 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:25,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,427 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 1 times [2018-11-28 23:17:25,427 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:25,427 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:25,428 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,428 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:25,429 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,434 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:25,434 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 2 times [2018-11-28 23:17:25,435 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:25,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:25,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:25,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:25,521 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:25,521 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:25,521 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:25,521 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:25,521 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:17:25,521 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:25,522 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:25,522 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:25,522 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 23:17:25,522 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:25,522 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:25,524 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 23:17:25,542 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 23:17:25,545 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 23:17:25,549 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 23:17:25,647 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:25,647 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 23:17:25,652 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:17:25,652 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:25,676 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:17:25,677 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:17:25,703 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:17:25,705 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:17:25,705 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:17:25,706 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:17:25,706 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:17:25,706 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:17:25,706 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:17:25,706 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:17:25,706 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:17:25,706 INFO L131 ssoRankerPreferences]: Filename of dumped script: NO_23_false-termination_true-no-overflow.c_Iteration4_Lasso [2018-11-28 23:17:25,707 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:17:25,707 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:17:25,708 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 23:17:25,722 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:25,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:17:25,728 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 23:17:25,861 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:17:25,861 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:17:25,862 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 23:17:25,865 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,865 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,865 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,866 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,868 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:25,868 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:25,883 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,884 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 23:17:25,884 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,885 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,885 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,885 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,887 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:25,887 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:25,892 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,893 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 23:17:25,893 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,893 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:25,894 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,894 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,894 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,894 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:17:25,895 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:25,896 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,896 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 23:17:25,897 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,897 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,897 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,897 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:17:25,899 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:25,899 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:17:25,902 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,902 INFO L497 LassoAnalysis]: Using template '2-nested'. [2018-11-28 23:17:25,903 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 23:17:25,904 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,904 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,904 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,904 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:25,907 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:25,908 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:25,927 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,928 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 23:17:25,928 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,929 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,929 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,929 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:25,935 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:25,937 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:25,950 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,951 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 23:17:25,951 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,951 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:25,954 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,954 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,954 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:25,955 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-28 23:17:25,955 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:25,956 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,956 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 23:17:25,958 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,959 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,959 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,959 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:25,961 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:25,961 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:25,969 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:25,974 INFO L497 LassoAnalysis]: Using template '3-nested'. [2018-11-28 23:17:25,974 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 23:17:25,975 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:25,975 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:25,976 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:25,977 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:25,985 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:25,985 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,025 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 23:17:26,025 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,026 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,026 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,026 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,031 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,031 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,039 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,040 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 23:17:26,040 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,040 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,043 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,043 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,043 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,044 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:17:26,044 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,046 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,047 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 23:17:26,047 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,050 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,050 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,050 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,053 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,053 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,058 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,059 INFO L497 LassoAnalysis]: Using template '4-nested'. [2018-11-28 23:17:26,059 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 23:17:26,060 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,060 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,062 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,062 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,066 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,066 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,100 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,100 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 23:17:26,105 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,105 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,105 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,105 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,112 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,112 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,127 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,128 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 23:17:26,128 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,128 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,131 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,131 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,131 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,132 INFO L402 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2018-11-28 23:17:26,132 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,133 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,133 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 23:17:26,137 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:17:26,138 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,138 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,138 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,143 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,144 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,151 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,151 INFO L497 LassoAnalysis]: Using template '2-phase'. [2018-11-28 23:17:26,151 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 23:17:26,154 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,154 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,155 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,155 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,155 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:26,157 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:26,158 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:26,179 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,183 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 23:17:26,184 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,184 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,186 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,187 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,187 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:26,188 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:26,197 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:26,211 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,211 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 23:17:26,212 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,212 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,212 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,213 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,213 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:26,218 INFO L402 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2018-11-28 23:17:26,218 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,219 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,219 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 23:17:26,224 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,226 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,226 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,226 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,226 INFO L207 nArgumentSynthesizer]: 3 template conjuncts. [2018-11-28 23:17:26,229 INFO L402 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2018-11-28 23:17:26,230 INFO L403 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2018-11-28 23:17:26,237 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,238 INFO L497 LassoAnalysis]: Using template '3-phase'. [2018-11-28 23:17:26,239 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 23:17:26,241 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,242 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-11-28 23:17:26,242 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,243 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,248 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,249 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,296 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,297 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 23:17:26,301 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,303 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-11-28 23:17:26,303 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,303 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,303 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,308 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,308 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,315 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,317 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 23:17:26,320 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,320 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-11-28 23:17:26,320 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,321 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,321 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:17:26,321 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,325 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,326 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:17:26,326 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,326 INFO L339 nArgumentSynthesizer]: Template has degree 2. [2018-11-28 23:17:26,326 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,329 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,329 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,332 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,332 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,337 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,337 INFO L497 LassoAnalysis]: Using template '4-phase'. [2018-11-28 23:17:26,339 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 23:17:26,339 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,339 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,340 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,340 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,340 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,345 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,346 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,369 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 23:17:26,370 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,370 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,370 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,370 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,370 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,375 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,376 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,385 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,386 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 23:17:26,386 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,386 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,386 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,391 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,392 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,392 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,394 INFO L402 nArgumentSynthesizer]: We have 5 Motzkin's Theorem applications. [2018-11-28 23:17:26,394 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,395 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,396 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 23:17:26,399 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,399 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,399 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,400 INFO L207 nArgumentSynthesizer]: 5 template conjuncts. [2018-11-28 23:17:26,404 INFO L402 nArgumentSynthesizer]: We have 15 Motzkin's Theorem applications. [2018-11-28 23:17:26,404 INFO L403 nArgumentSynthesizer]: A total of 5 supporting invariants were added. [2018-11-28 23:17:26,413 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,413 INFO L497 LassoAnalysis]: Using template '2-lex'. [2018-11-28 23:17:26,415 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 23:17:26,415 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,415 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,418 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,419 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,419 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,420 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,421 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,449 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,453 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 23:17:26,454 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,454 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,454 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,454 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,454 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,459 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,459 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,464 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,465 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 23:17:26,468 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,469 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,469 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,469 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,469 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,469 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,470 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-28 23:17:26,470 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,476 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,477 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 23:17:26,477 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,478 INFO L339 nArgumentSynthesizer]: Template has degree 1. [2018-11-28 23:17:26,478 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,478 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,478 INFO L207 nArgumentSynthesizer]: 4 template conjuncts. [2018-11-28 23:17:26,483 INFO L402 nArgumentSynthesizer]: We have 12 Motzkin's Theorem applications. [2018-11-28 23:17:26,483 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2018-11-28 23:17:26,487 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,493 INFO L497 LassoAnalysis]: Using template '3-lex'. [2018-11-28 23:17:26,494 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 23:17:26,497 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,497 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,497 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,497 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,497 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-11-28 23:17:26,503 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-11-28 23:17:26,504 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-11-28 23:17:26,560 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,561 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 23:17:26,562 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,562 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,562 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,562 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,562 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-11-28 23:17:26,568 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-11-28 23:17:26,568 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-11-28 23:17:26,575 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,575 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 23:17:26,576 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,576 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,576 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:17:26,576 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,576 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,577 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-11-28 23:17:26,577 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:17:26,577 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:17:26,584 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,585 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 23:17:26,585 WARN L334 nArgumentSynthesizer]: Using a linear SMT query and a templates of degree > 0, hence this method is incomplete. [2018-11-28 23:17:26,585 INFO L339 nArgumentSynthesizer]: Template has degree 3. [2018-11-28 23:17:26,586 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:17:26,586 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:17:26,586 INFO L207 nArgumentSynthesizer]: 6 template conjuncts. [2018-11-28 23:17:26,591 INFO L402 nArgumentSynthesizer]: We have 18 Motzkin's Theorem applications. [2018-11-28 23:17:26,591 INFO L403 nArgumentSynthesizer]: A total of 6 supporting invariants were added. [2018-11-28 23:17:26,597 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:17:26,598 INFO L488 BuchiCegarLoop]: Result of lasso check was UNKNOWN. I will concatenate loop to stem and try again. [2018-11-28 23:17:26,598 INFO L794 eck$LassoCheckResult]: Stem: 318#ULTIMATE.startENTRY havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-11-28 23:17:26,598 INFO L796 eck$LassoCheckResult]: Loop: 315#L10-2 assume !!(main_~i~0 < 100); 316#L10 assume main_~i~0 < 50;main_~i~0 := 51; 317#L10-2 assume !!(main_~i~0 < 100); 314#L10 assume !(main_~i~0 < 50);main_~i~0 := 49; 315#L10-2 [2018-11-28 23:17:26,598 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:26,598 INFO L82 PathProgramCache]: Analyzing trace with hash 29863400, now seen corresponding path program 3 times [2018-11-28 23:17:26,600 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:26,600 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:26,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,603 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:26,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:26,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1234249, now seen corresponding path program 2 times [2018-11-28 23:17:26,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:26,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:26,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,610 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:26,611 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:26,616 INFO L82 PathProgramCache]: Analyzing trace with hash 1492334512, now seen corresponding path program 4 times [2018-11-28 23:17:26,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:26,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,617 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:17:26,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:26,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:26,748 WARN L180 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 10 [2018-11-28 23:17:26,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:17:26 BoogieIcfgContainer [2018-11-28 23:17:26,795 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:17:26,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:17:26,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:17:26,796 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:17:26,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21" (3/4) ... [2018-11-28 23:17:26,802 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:17:26,850 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:17:26,851 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:17:26,852 INFO L168 Benchmark]: Toolchain (without parser) took 5827.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 952.7 MB in the beginning and 843.4 MB in the end (delta: 109.4 MB). Peak memory consumption was 267.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:26,854 INFO L168 Benchmark]: CDTParser took 0.18 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 23:17:26,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:26,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.81 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 23:17:26,862 INFO L168 Benchmark]: Boogie Preprocessor took 24.82 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 23:17:26,862 INFO L168 Benchmark]: RCFGBuilder took 338.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:26,863 INFO L168 Benchmark]: BuchiAutomizer took 5033.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.4 MB in the end (delta: 299.1 MB). Peak memory consumption was 299.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:26,865 INFO L168 Benchmark]: Witness Printer took 55.41 ms. Allocated memory is still 1.2 GB. Free memory is still 843.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:26,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 330.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 39.81 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 24.82 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 338.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5033.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 843.4 MB in the end (delta: 299.1 MB). Peak memory consumption was 299.1 MB. Max. memory is 11.5 GB. * Witness Printer took 55.41 ms. Allocated memory is still 1.2 GB. Free memory is still 843.4 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 (2 trivial, 2 deterministic, 1 nondeterministic) and one nonterminating remainder module.One deterministic module has affine ranking function -1 * i + 50 and consists of 4 locations. One deterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. One nondeterministic module has affine ranking function -1 * i + 50 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 4 iterations. TraceHistogramMax:3. Analysis of lassos took 4.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 0. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 24 SDtfs, 22 SDslu, 3 SDs, 0 SdLazy, 39 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital8 mio100 ax250 hnf100 lsp40 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf91 smp100 dnf100 smp100 tf118 neg100 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 18ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {\result=0, i=49} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 Loop: [L9] COND TRUE i < 100 [L10] COND TRUE i < 50 [L10] i = 51 [L9] COND TRUE i < 100 [L10] COND FALSE !(i < 50) [L11] i = 49 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...