./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c761fb15c9d367876fc9f1553874e9680fa1668 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 23:14:56,119 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:14:56,122 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:14:56,136 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:14:56,136 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:14:56,139 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:14:56,141 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:14:56,143 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:14:56,145 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:14:56,146 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:14:56,147 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:14:56,147 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:14:56,148 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:14:56,149 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:14:56,150 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:14:56,151 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:14:56,152 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:14:56,154 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:14:56,156 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:14:56,158 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:14:56,159 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:14:56,160 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:14:56,163 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:14:56,163 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:14:56,163 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:14:56,164 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:14:56,166 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:14:56,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:14:56,167 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:14:56,169 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:14:56,169 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:14:56,170 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:14:56,170 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:14:56,170 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:14:56,171 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:14:56,172 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:14:56,172 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:14:56,201 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:14:56,201 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:14:56,203 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:14:56,203 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:14:56,204 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:14:56,204 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:14:56,204 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:14:56,204 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:14:56,204 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:14:56,205 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:14:56,206 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:14:56,206 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:14:56,206 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:14:56,206 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:14:56,207 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:14:56,207 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:14:56,207 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:14:56,207 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:14:56,207 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:14:56,208 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:14:56,208 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:14:56,208 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:14:56,208 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:14:56,208 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:14:56,208 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:14:56,209 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:14:56,209 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:14:56,209 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:14:56,212 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:14:56,212 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 -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2018-11-28 23:14:56,271 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:14:56,287 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:14:56,291 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:14:56,293 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:14:56,293 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:14:56,294 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-28 23:14:56,356 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008ffdc7/587130b2e34a4efe840fc97ad7661053/FLAG4576a89f9 [2018-11-28 23:14:56,829 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:14:56,830 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-28 23:14:56,839 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008ffdc7/587130b2e34a4efe840fc97ad7661053/FLAG4576a89f9 [2018-11-28 23:14:57,198 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9008ffdc7/587130b2e34a4efe840fc97ad7661053 [2018-11-28 23:14:57,202 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:14:57,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:14:57,206 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:57,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:14:57,210 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:14:57,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b87525c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57, skipping insertion in model container [2018-11-28 23:14:57,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:14:57,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:14:57,483 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:57,489 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:14:57,510 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:14:57,528 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:14:57,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57 WrapperNode [2018-11-28 23:14:57,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:14:57,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:57,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:14:57,530 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:14:57,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:14:57,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:14:57,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:14:57,578 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:14:57,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,592 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... [2018-11-28 23:14:57,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:14:57,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:14:57,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:14:57,609 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:14:57,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:57,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:14:57,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:14:57,930 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:14:57,930 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:14:57,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:57 BoogieIcfgContainer [2018-11-28 23:14:57,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:14:57,933 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:14:57,933 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:14:57,937 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:14:57,938 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:57,939 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:14:57" (1/3) ... [2018-11-28 23:14:57,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df80f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:57, skipping insertion in model container [2018-11-28 23:14:57,940 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:57,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:14:57" (2/3) ... [2018-11-28 23:14:57,941 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4df80f75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:14:57, skipping insertion in model container [2018-11-28 23:14:57,941 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:14:57,941 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:57" (3/3) ... [2018-11-28 23:14:57,943 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-28 23:14:58,008 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:14:58,009 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:14:58,009 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:14:58,009 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:14:58,009 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:14:58,009 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:14:58,009 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:14:58,010 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:14:58,010 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:14:58,026 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:14:58,050 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:58,051 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:58,051 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:58,060 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:14:58,060 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:58,061 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:14:58,061 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 23:14:58,062 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:58,062 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:58,062 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:58,063 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 23:14:58,063 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:58,073 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 7#L19-2true [2018-11-28 23:14:58,074 INFO L796 eck$LassoCheckResult]: Loop: 7#L19-2true assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 9#L19true assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 7#L19-2true [2018-11-28 23:14:58,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 23:14:58,087 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,089 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:58,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 1 times [2018-11-28 23:14:58,200 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,200 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:58,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,220 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:58,220 INFO L82 PathProgramCache]: Analyzing trace with hash 957575, now seen corresponding path program 1 times [2018-11-28 23:14:58,220 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:58,220 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:58,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:58,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:58,400 WARN L180 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 10 [2018-11-28 23:14:58,480 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:58,481 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:58,481 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:58,481 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:58,482 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:58,482 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,482 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:58,482 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:58,483 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:14:58,483 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:58,483 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:58,510 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:58,558 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:58,574 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:58,738 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:58,739 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 23:14:58,745 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,745 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:58,773 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:58,774 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) [2018-11-28 23:14:58,783 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,783 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,805 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:14:58,805 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,816 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:14:58,816 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 23:14:58,842 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:14:58,842 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:14:58,984 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:14:58,986 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:58,986 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:58,986 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:58,986 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:58,986 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:14:58,987 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:58,987 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:58,987 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:58,987 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 23:14:58,987 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:58,987 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:58,989 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:58,997 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:59,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:59,312 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:14:59,318 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:14:59,320 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:14:59,322 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,328 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:59,329 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:59,340 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,341 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:14:59,342 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,342 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,342 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,342 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,347 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:14:59,347 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:14:59,368 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:14:59,368 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:14:59,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:14:59,370 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:14:59,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:14:59,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:14:59,371 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:14:59,373 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:14:59,373 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:14:59,383 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:14:59,393 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:14:59,393 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:14:59,396 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:14:59,396 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:14:59,397 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:14:59,397 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:14:59,399 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:14:59,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:59,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:59,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:59,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:14:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:14:59,567 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 23:14:59,569 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-28 23:14:59,627 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 28 states and 35 transitions. Complement of second has 6 states. [2018-11-28 23:14:59,628 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 23:14:59,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:14:59,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-28 23:14:59,632 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 23:14:59,633 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:14:59,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,634 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-28 23:14:59,634 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:14:59,635 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 35 transitions. [2018-11-28 23:14:59,639 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:59,644 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 8 states and 11 transitions. [2018-11-28 23:14:59,645 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:14:59,645 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-28 23:14:59,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2018-11-28 23:14:59,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:14:59,646 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:14:59,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2018-11-28 23:14:59,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-11-28 23:14:59,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-28 23:14:59,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-11-28 23:14:59,673 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:14:59,673 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-11-28 23:14:59,673 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 23:14:59,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-11-28 23:14:59,674 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:14:59,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:14:59,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:14:59,675 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-28 23:14:59,675 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:14:59,676 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 73#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 74#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 79#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 75#L19-2 [2018-11-28 23:14:59,676 INFO L796 eck$LassoCheckResult]: Loop: 75#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 76#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 75#L19-2 [2018-11-28 23:14:59,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:59,676 INFO L82 PathProgramCache]: Analyzing trace with hash 957577, now seen corresponding path program 1 times [2018-11-28 23:14:59,676 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:59,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:59,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:59,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:59,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:59,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:59,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1380, now seen corresponding path program 2 times [2018-11-28 23:14:59,690 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:59,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:59,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:14:59,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:14:59,700 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:14:59,700 INFO L82 PathProgramCache]: Analyzing trace with hash 920231916, now seen corresponding path program 1 times [2018-11-28 23:14:59,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:14:59,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:14:59,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,703 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:14:59,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:14:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:14:59,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:14:59,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:14:59,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 23:14:59,931 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:14:59,931 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:14:59,931 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:14:59,931 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:14:59,931 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:14:59,932 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:14:59,932 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:14:59,932 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:14:59,932 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:14:59,932 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:14:59,932 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:14:59,934 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:14:59,941 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 23:14:59,951 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 23:15:00,004 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:00,005 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:00,009 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:00,009 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:00,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:00,031 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:00,036 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:00,036 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 23:15:00,063 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:00,063 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:00,212 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:00,214 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:00,215 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:00,215 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:00,215 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:00,215 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:00,215 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:00,215 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:00,216 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:00,216 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 23:15:00,216 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:00,216 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:00,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:00,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:00,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:00,424 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:00,424 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:00,425 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:15:00,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:00,427 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:00,427 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:00,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:00,429 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 23:15:00,429 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 23:15:00,434 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 23:15:00,434 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:15:00,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:00,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:00,435 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:00,436 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:00,436 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:00,436 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:00,437 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:00,441 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:00,446 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 23:15:00,446 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:00,447 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:00,447 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:00,447 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:00,448 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~y~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:15:00,448 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:00,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:00,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:00,782 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:00,798 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:00,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:00,799 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 23:15:00,799 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-28 23:15:00,896 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 12 states and 17 transitions. Complement of second has 5 states. [2018-11-28 23:15:00,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:00,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:00,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2018-11-28 23:15:00,897 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-28 23:15:00,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:00,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-28 23:15:00,898 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:00,898 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-28 23:15:00,899 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:00,899 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 17 transitions. [2018-11-28 23:15:00,900 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:00,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 17 transitions. [2018-11-28 23:15:00,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-28 23:15:00,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 23:15:00,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 17 transitions. [2018-11-28 23:15:00,901 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:00,901 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-28 23:15:00,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 17 transitions. [2018-11-28 23:15:00,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-28 23:15:00,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-28 23:15:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 17 transitions. [2018-11-28 23:15:00,904 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 17 transitions. [2018-11-28 23:15:00,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:15:00,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:15:00,909 INFO L87 Difference]: Start difference. First operand 12 states and 17 transitions. Second operand 5 states. [2018-11-28 23:15:01,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:15:01,036 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-11-28 23:15:01,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 23:15:01,037 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-28 23:15:01,039 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:01,040 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 10 states and 12 transitions. [2018-11-28 23:15:01,040 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-28 23:15:01,040 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-28 23:15:01,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2018-11-28 23:15:01,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:01,041 INFO L705 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-28 23:15:01,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2018-11-28 23:15:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 7. [2018-11-28 23:15:01,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:15:01,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 9 transitions. [2018-11-28 23:15:01,043 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:15:01,043 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 9 transitions. [2018-11-28 23:15:01,043 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 23:15:01,043 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 9 transitions. [2018-11-28 23:15:01,045 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:01,046 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:01,047 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:01,047 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 23:15:01,047 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:01,047 INFO L794 eck$LassoCheckResult]: Stem: 156#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 157#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 158#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 160#L19 [2018-11-28 23:15:01,047 INFO L796 eck$LassoCheckResult]: Loop: 160#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 159#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 160#L19 [2018-11-28 23:15:01,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,051 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-11-28 23:15:01,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:01,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 1 times [2018-11-28 23:15:01,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:01,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,070 INFO L82 PathProgramCache]: Analyzing trace with hash 29684900, now seen corresponding path program 2 times [2018-11-28 23:15:01,070 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,070 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:15:01,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,124 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:01,124 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:01,124 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:01,124 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:01,124 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:01,124 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:01,125 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:01,125 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:01,125 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:15:01,125 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:01,125 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:01,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,134 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,146 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,223 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:01,224 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 23:15:01,232 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:01,232 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:01,253 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 23:15:01,253 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 23:15:01,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:01,259 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 23:15:01,283 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:01,283 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:01,574 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:01,576 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:01,576 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:01,577 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:01,577 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:01,577 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:01,577 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:01,577 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:01,577 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:01,578 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-28 23:15:01,578 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:01,578 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:01,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,606 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,668 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:01,668 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:01,669 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:15:01,672 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:01,672 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:01,672 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:01,673 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:01,673 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:01,673 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:01,674 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:01,678 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:01,683 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:15:01,683 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:01,684 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:01,684 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:01,684 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:01,684 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:15:01,685 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:01,736 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:01,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:01,750 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:01,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:01,802 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:15:01,802 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-28 23:15:01,821 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 9 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 14 transitions. Complement of second has 5 states. [2018-11-28 23:15:01,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:01,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:01,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-28 23:15:01,824 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 23:15:01,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:01,825 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:15:01,825 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:01,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-28 23:15:01,826 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:01,826 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-11-28 23:15:01,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:01,828 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 8 states and 9 transitions. [2018-11-28 23:15:01,828 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-28 23:15:01,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 23:15:01,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-11-28 23:15:01,828 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-28 23:15:01,828 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-11-28 23:15:01,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-11-28 23:15:01,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-11-28 23:15:01,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-28 23:15:01,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-28 23:15:01,830 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-28 23:15:01,830 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-28 23:15:01,830 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-28 23:15:01,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-28 23:15:01,831 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-28 23:15:01,831 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:15:01,831 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:15:01,832 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1] [2018-11-28 23:15:01,832 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-28 23:15:01,832 INFO L794 eck$LassoCheckResult]: Stem: 211#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 212#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 213#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 214#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 215#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 216#L19 [2018-11-28 23:15:01,832 INFO L796 eck$LassoCheckResult]: Loop: 216#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 217#L19-2 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 216#L19 [2018-11-28 23:15:01,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,833 INFO L82 PathProgramCache]: Analyzing trace with hash 29684838, now seen corresponding path program 2 times [2018-11-28 23:15:01,833 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,833 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,835 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:01,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1532, now seen corresponding path program 2 times [2018-11-28 23:15:01,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,857 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:01,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:15:01,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:01,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1537641183, now seen corresponding path program 2 times [2018-11-28 23:15:01,865 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:15:01,865 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:15:01,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,868 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-28 23:15:01,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:15:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:01,929 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:01,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 23:15:01,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 23:15:01,982 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:01,983 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:01,983 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:01,983 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:01,983 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 23:15:01,983 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:01,983 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:01,983 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:01,984 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:15:01,984 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:01,984 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:01,985 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:01,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:02,079 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:02,080 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 23:15:02,083 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 23:15:02,084 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 23:15:02,110 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 23:15:02,110 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 23:15:02,392 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 23:15:02,394 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 23:15:02,394 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 23:15:02,395 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 23:15:02,395 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 23:15:02,395 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 23:15:02,395 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 23:15:02,395 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 23:15:02,395 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 23:15:02,395 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-28 23:15:02,396 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 23:15:02,396 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 23:15:02,397 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:02,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:02,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 23:15:02,547 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 23:15:02,547 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 23:15:02,548 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 23:15:02,548 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 23:15:02,550 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 23:15:02,550 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 23:15:02,550 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 23:15:02,550 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 23:15:02,551 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 23:15:02,551 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 23:15:02,555 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 23:15:02,560 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-28 23:15:02,560 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 23:15:02,560 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 23:15:02,560 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 23:15:02,561 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 23:15:02,562 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 23:15:02,562 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 23:15:02,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,630 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:02,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:15:02,696 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 23:15:02,707 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-28 23:15:02,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:02,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:02,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-28 23:15:02,709 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:15:02,709 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:02,710 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:02,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,759 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:02,794 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:15:02,795 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 23:15:02,804 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 3 states. [2018-11-28 23:15:02,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:02,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:02,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3 transitions. [2018-11-28 23:15:02,807 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 3 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:15:02,808 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:02,808 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-28 23:15:02,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:15:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,840 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 23:15:02,849 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 23:15:02,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 23:15:02,862 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-28 23:15:02,862 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-28 23:15:02,877 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 9 states and 10 transitions. Complement of second has 4 states. [2018-11-28 23:15:02,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-28 23:15:02,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-28 23:15:02,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-28 23:15:02,879 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-28 23:15:02,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:02,880 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-11-28 23:15:02,880 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:02,881 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-28 23:15:02,881 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 23:15:02,881 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 9 states and 10 transitions. [2018-11-28 23:15:02,883 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:02,883 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 9 states to 0 states and 0 transitions. [2018-11-28 23:15:02,883 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:15:02,884 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:15:02,884 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:15:02,884 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:15:02,884 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:02,884 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:02,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-28 23:15:02,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 23:15:02,885 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-28 23:15:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 23:15:02,885 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 23:15:02,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 23:15:02,885 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 23:15:02,885 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:02,886 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 23:15:02,886 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 23:15:02,886 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 23:15:02,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 23:15:02,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 23:15:02,886 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:02,886 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:02,886 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 23:15:02,887 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-28 23:15:02,887 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 23:15:02,887 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 23:15:02,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 23:15:02,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:15:02 BoogieIcfgContainer [2018-11-28 23:15:02,898 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:15:02,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:15:02,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:15:02,899 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:15:02,900 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:14:57" (3/4) ... [2018-11-28 23:15:02,903 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 23:15:02,903 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:15:02,904 INFO L168 Benchmark]: Toolchain (without parser) took 5701.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 950.0 MB in the beginning and 869.6 MB in the end (delta: 80.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:02,906 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 23:15:02,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 937.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:02,907 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.80 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:02,908 INFO L168 Benchmark]: Boogie Preprocessor took 30.31 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:02,908 INFO L168 Benchmark]: RCFGBuilder took 323.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:02,909 INFO L168 Benchmark]: BuchiAutomizer took 4965.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.6 MB in the end (delta: 237.3 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. [2018-11-28 23:15:02,911 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 1.2 GB. Free memory is still 869.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:15:02,916 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 323.76 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 937.9 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 47.80 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.31 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 323.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -169.1 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4965.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 869.6 MB in the end (delta: 237.3 MB). Peak memory consumption was 237.3 MB. Max. memory is 11.5 GB. * Witness Printer took 4.55 ms. Allocated memory is still 1.2 GB. Free memory is still 869.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y + -1 * x and consists of 4 locations. One deterministic module has affine ranking function y + -1 * x and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.9s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.9s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 31 SDtfs, 29 SDslu, 3 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 17ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...