./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-crafted/Mysore-2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-crafted/Mysore-2.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 86a466e94bfa75cb76f97095bf8fe7fd27594940 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:28:52,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:28:52,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:28:52,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:28:52,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:28:52,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:28:52,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:28:52,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:28:52,404 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:28:52,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:28:52,408 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:28:52,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:28:52,411 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:28:52,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:28:52,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:28:52,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:28:52,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:28:52,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:28:52,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:28:52,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:28:52,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:28:52,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:28:52,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:28:52,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:28:52,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:28:52,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:28:52,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:28:52,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:28:52,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:28:52,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:28:52,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:28:52,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:28:52,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:28:52,454 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:28:52,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:28:52,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:28:52,458 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:28:52,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:28:52,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:28:52,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:28:52,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:28:52,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:28:52,502 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:28:52,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:28:52,506 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:28:52,506 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:28:52,508 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:28:52,508 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:28:52,508 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:28:52,509 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:28:52,509 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:28:52,511 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:28:52,511 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:28:52,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:28:52,512 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:28:52,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:28:52,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:28:52,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:28:52,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:28:52,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:28:52,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:28:52,514 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:28:52,515 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:28:52,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:28:52,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:28:52,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:28:52,516 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:28:52,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:28:52,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:28:52,517 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:28:52,518 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:28:52,520 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:28:52,520 INFO L138 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 -> 86a466e94bfa75cb76f97095bf8fe7fd27594940 [2019-11-28 20:28:52,871 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:28:52,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:28:52,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:28:52,898 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:28:52,899 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:28:52,900 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Mysore-2.c [2019-11-28 20:28:52,980 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9fee896/10939b5be3f94ad4b0a5b79c918915ed/FLAGdc16223c6 [2019-11-28 20:28:53,439 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:28:53,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Mysore-2.c [2019-11-28 20:28:53,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9fee896/10939b5be3f94ad4b0a5b79c918915ed/FLAGdc16223c6 [2019-11-28 20:28:53,850 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb9fee896/10939b5be3f94ad4b0a5b79c918915ed [2019-11-28 20:28:53,855 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:28:53,857 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:28:53,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:28:53,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:28:53,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:28:53,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:28:53" (1/1) ... [2019-11-28 20:28:53,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f57c6e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:53, skipping insertion in model container [2019-11-28 20:28:53,870 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:28:53" (1/1) ... [2019-11-28 20:28:53,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:28:53,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:28:54,124 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:28:54,130 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:28:54,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:28:54,159 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:28:54,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54 WrapperNode [2019-11-28 20:28:54,159 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:28:54,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:28:54,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:28:54,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:28:54,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:28:54,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:28:54,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:28:54,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:28:54,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... [2019-11-28 20:28:54,265 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:28:54,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:28:54,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:28:54,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:28:54,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:54,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:28:54,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:28:54,493 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:28:54,493 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:28:54,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:54 BoogieIcfgContainer [2019-11-28 20:28:54,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:28:54,495 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:28:54,496 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:28:54,499 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:28:54,499 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:54,500 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:28:53" (1/3) ... [2019-11-28 20:28:54,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@362121eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:28:54, skipping insertion in model container [2019-11-28 20:28:54,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:54,501 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:28:54" (2/3) ... [2019-11-28 20:28:54,501 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@362121eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:28:54, skipping insertion in model container [2019-11-28 20:28:54,501 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:28:54,502 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:54" (3/3) ... [2019-11-28 20:28:54,503 INFO L371 chiAutomizerObserver]: Analyzing ICFG Mysore-2.c [2019-11-28 20:28:54,612 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:28:54,612 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:28:54,613 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:28:54,613 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:28:54,613 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:28:54,613 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:28:54,614 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:28:54,614 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:28:54,635 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-28 20:28:54,666 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:28:54,666 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:28:54,666 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:28:54,674 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:28:54,675 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:28:54,675 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:28:54,675 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2019-11-28 20:28:54,677 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-11-28 20:28:54,677 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:28:54,677 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:28:54,678 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-11-28 20:28:54,678 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-11-28 20:28:54,685 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~c~0, main_~x~0;havoc main_~c~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~c~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L19true assume !!(-65535 <= main_~x~0 && main_~x~0 <= 65535); 9#L20true assume !!(-65535 <= main_~c~0 && main_~c~0 <= 65535); 3#L21true assume main_~c~0 >= 2; 10#L22-2true [2019-11-28 20:28:54,685 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(main_~x~0 + main_~c~0 >= 0);main_~x~0 := main_~x~0 - main_~c~0;main_~c~0 := 1 + main_~c~0; 10#L22-2true [2019-11-28 20:28:54,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:54,691 INFO L82 PathProgramCache]: Analyzing trace with hash 959433, now seen corresponding path program 1 times [2019-11-28 20:28:54,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:54,699 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929835728] [2019-11-28 20:28:54,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:54,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,798 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:54,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:54,800 INFO L82 PathProgramCache]: Analyzing trace with hash 54, now seen corresponding path program 1 times [2019-11-28 20:28:54,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:54,801 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414611053] [2019-11-28 20:28:54,802 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,817 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:54,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:54,819 INFO L82 PathProgramCache]: Analyzing trace with hash 29742446, now seen corresponding path program 1 times [2019-11-28 20:28:54,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:28:54,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36650425] [2019-11-28 20:28:54,821 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:28:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:28:54,841 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:28:54,898 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:28:54,899 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:28:54,900 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:28:54,900 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:28:54,900 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:28:54,900 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:54,900 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:28:54,900 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:28:54,901 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2019-11-28 20:28:54,901 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:28:54,901 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:28:54,923 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:54,936 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:54,943 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:55,060 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:28:55,061 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:55,075 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:28:55,082 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:28:55,092 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:28:55,093 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:28:55,106 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:28:55,106 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:55,112 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:28:55,112 INFO L440 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) [2019-11-28 20:28:55,125 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:28:55,125 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:55,143 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:28:55,144 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:28:57,238 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:28:57,240 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:28:57,240 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:28:57,240 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:28:57,241 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:28:57,241 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:28:57,241 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,241 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:28:57,241 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:28:57,241 INFO L133 ssoRankerPreferences]: Filename of dumped script: Mysore-2.c_Iteration1_Loop [2019-11-28 20:28:57,243 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:28:57,243 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:28:57,246 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:57,253 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:57,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:28:57,355 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:28:57,360 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 20:28:57,371 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:28:57,374 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,374 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,374 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,374 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:28:57,384 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:28:57,385 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,398 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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) [2019-11-28 20:28:57,413 INFO L120 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 Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,417 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,418 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,418 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,418 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:28:57,424 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:28:57,424 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-11-28 20:28:57,434 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. 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) [2019-11-28 20:28:57,457 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:28:57,459 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,459 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:28:57,460 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,460 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,460 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:28:57,463 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:28:57,463 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,468 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-11-28 20:28:57,470 INFO L489 LassoAnalysis]: Using template '2-nested'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,479 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:28:57,484 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,484 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,484 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,484 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 20:28:57,496 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 20:28:57,496 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-28 20:28:57,504 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,522 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:28:57,524 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,525 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,527 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,527 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 20:28:57,537 INFO L401 nArgumentSynthesizer]: We have 9 Motzkin's Theorem applications. [2019-11-28 20:28:57,537 INFO L402 nArgumentSynthesizer]: A total of 3 supporting invariants were added. [2019-11-28 20:28:57,552 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,571 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-11-28 20:28:57,573 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:28:57,573 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:28:57,573 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:28:57,574 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:28:57,574 INFO L205 nArgumentSynthesizer]: 3 template conjuncts. [2019-11-28 20:28:57,576 INFO L401 nArgumentSynthesizer]: We have 3 Motzkin's Theorem applications. [2019-11-28 20:28:57,577 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-11-28 20:28:57,582 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:28:57,602 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2019-11-28 20:28:57,603 INFO L444 ModelExtractionUtils]: 1 out of 7 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:28:57,611 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:28:57,611 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:28:57,611 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:28:57,612 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function 2-nested ranking function: f0 = -2*ULTIMATE.start_main_~c~0 + 3 f1 = 2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~c~0 + 1 Supporting invariants [] [2019-11-28 20:28:57,617 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-11-28 20:28:57,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:28:57,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:28:57,670 INFO L264 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:28:57,671 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:28:57,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:28:57,687 WARN L262 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 7 conjunts are in the unsatisfiable core [2019-11-28 20:28:57,687 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:28:57,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:28:57,706 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-11-28 20:28:57,707 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 2 states. [2019-11-28 20:28:57,755 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 2 states. Result 22 states and 27 transitions. Complement of second has 5 states. [2019-11-28 20:28:57,756 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 [2019-11-28 20:28:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-11-28 20:28:57,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2019-11-28 20:28:57,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 1 letters. [2019-11-28 20:28:57,762 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:28:57,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 5 letters. Loop has 1 letters. [2019-11-28 20:28:57,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:28:57,763 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 4 letters. Loop has 2 letters. [2019-11-28 20:28:57,763 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:28:57,764 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 27 transitions. [2019-11-28 20:28:57,768 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:28:57,771 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 0 states and 0 transitions. [2019-11-28 20:28:57,772 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-11-28 20:28:57,772 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-11-28 20:28:57,773 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-11-28 20:28:57,773 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:28:57,774 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:28:57,774 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:28:57,774 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-28 20:28:57,774 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:28:57,774 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-11-28 20:28:57,774 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-11-28 20:28:57,775 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-11-28 20:28:57,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:28:57 BoogieIcfgContainer [2019-11-28 20:28:57,782 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:28:57,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:28:57,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:28:57,783 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:28:57,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:28:54" (3/4) ... [2019-11-28 20:28:57,788 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-28 20:28:57,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:28:57,791 INFO L168 Benchmark]: Toolchain (without parser) took 3932.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.7 MB in the beginning and 999.4 MB in the end (delta: -41.7 MB). Peak memory consumption was 95.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:57,791 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:28:57,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.80 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:57,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:57,794 INFO L168 Benchmark]: Boogie Preprocessor took 17.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:28:57,795 INFO L168 Benchmark]: RCFGBuilder took 229.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:57,796 INFO L168 Benchmark]: BuchiAutomizer took 3286.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.4 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. [2019-11-28 20:28:57,796 INFO L168 Benchmark]: Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 999.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:28:57,801 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.80 ms. Allocated memory is still 1.0 GB. Free memory was 957.7 MB in the beginning and 946.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 86.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -186.6 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.83 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 229.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.1 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3286.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 999.4 MB in the end (delta: 115.0 MB). Peak memory consumption was 115.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.32 ms. Allocated memory is still 1.2 GB. Free memory is still 999.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has 2-nested ranking function (if -2 * c + 3 > 0 then 1 else 0), (if -2 * c + 3 > 0 then -2 * c + 3 else 2 * x + 2 * c + 1) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital19 mio100 ax163 hnf93 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf93 smp100 dnf100 smp100 tf107 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 33ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 3 MotzkinApplications: 9 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 2.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...