./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer --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 5b51e497bfccbe41f125b1047cdc66303f76f609 ............................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:48:03,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:48:03,763 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:48:03,770 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:48:03,770 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:48:03,771 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:48:03,772 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:48:03,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:48:03,774 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:48:03,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:48:03,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:48:03,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:48:03,776 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:48:03,776 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:48:03,777 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:48:03,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:48:03,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:48:03,779 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:48:03,781 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:48:03,782 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:48:03,782 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:48:03,783 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:48:03,785 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:48:03,785 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:48:03,785 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:48:03,786 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:48:03,786 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:48:03,787 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:48:03,787 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:48:03,788 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:48:03,788 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:48:03,789 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:48:03,789 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:48:03,789 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:48:03,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:48:03,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:48:03,790 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 12:48:03,801 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:48:03,801 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:48:03,802 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:48:03,802 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:48:03,802 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:48:03,802 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 12:48:03,802 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 12:48:03,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:48:03,803 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:48:03,804 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 12:48:03,804 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:48:03,805 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:48:03,805 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 12:48:03,805 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:48:03,805 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:48:03,805 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 12:48:03,806 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 12:48:03,806 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer 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 -> 5b51e497bfccbe41f125b1047cdc66303f76f609 [2018-11-28 12:48:03,828 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:48:03,837 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:48:03,839 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:48:03,839 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:48:03,840 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:48:03,840 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c [2018-11-28 12:48:03,879 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/data/fa1b37ac9/0b732828d0ba47ebb538be4513e2fe7a/FLAGdeee6929a [2018-11-28 12:48:04,272 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:48:04,273 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c [2018-11-28 12:48:04,276 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/data/fa1b37ac9/0b732828d0ba47ebb538be4513e2fe7a/FLAGdeee6929a [2018-11-28 12:48:04,284 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/data/fa1b37ac9/0b732828d0ba47ebb538be4513e2fe7a [2018-11-28 12:48:04,286 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:48:04,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:48:04,287 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:48:04,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:48:04,290 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:48:04,291 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,293 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@279c5be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04, skipping insertion in model container [2018-11-28 12:48:04,293 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:48:04,312 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:48:04,411 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:48:04,414 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:48:04,422 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:48:04,431 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:48:04,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04 WrapperNode [2018-11-28 12:48:04,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:48:04,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:48:04,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:48:04,433 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:48:04,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:48:04,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:48:04,453 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:48:04,454 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:48:04,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... [2018-11-28 12:48:04,468 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:48:04,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:48:04,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:48:04,469 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:48:04,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:48:04,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:48:04,623 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:48:04,623 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 12:48:04,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:48:04 BoogieIcfgContainer [2018-11-28 12:48:04,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:48:04,624 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 12:48:04,624 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 12:48:04,629 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 12:48:04,629 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:48:04,629 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 12:48:04" (1/3) ... [2018-11-28 12:48:04,630 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43619709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:48:04, skipping insertion in model container [2018-11-28 12:48:04,630 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:48:04,630 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:48:04" (2/3) ... [2018-11-28 12:48:04,631 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@43619709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 12:48:04, skipping insertion in model container [2018-11-28 12:48:04,631 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 12:48:04,631 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:48:04" (3/3) ... [2018-11-28 12:48:04,632 INFO L375 chiAutomizerObserver]: Analyzing ICFG DivMinus_true-termination_true-no-overflow.c [2018-11-28 12:48:04,676 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:48:04,676 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 12:48:04,677 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 12:48:04,677 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 12:48:04,677 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:48:04,677 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:48:04,677 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 12:48:04,677 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:48:04,677 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 12:48:04,685 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 12:48:04,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:48:04,698 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:48:04,698 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:48:04,702 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:48:04,702 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:48:04,702 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 12:48:04,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 12:48:04,703 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 12:48:04,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 12:48:04,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 12:48:04,703 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 12:48:04,704 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 12:48:04,710 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 5#L13-2true [2018-11-28 12:48:04,710 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~res~0 := 1 + main_~res~0; 5#L13-2true [2018-11-28 12:48:04,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:48:04,715 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 12:48:04,717 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:48:04,717 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:48:04,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:48:04,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:48:04,780 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 12:48:04,780 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:48:04,780 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:48:04,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,781 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:48:04,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,789 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:48:04,789 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 12:48:04,789 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:48:04,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:48:04,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:48:04,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:48:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:48:04,839 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:48:04,839 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:48:04,839 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:48:04,839 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:48:04,840 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 12:48:04,840 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:48:04,840 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:48:04,840 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:48:04,840 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:48:04,840 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:48:04,840 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:48:04,862 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 12:48:04,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 12:48:04,880 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 12:48:04,883 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 12:48:04,981 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:48:04,982 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:04,985 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:48:04,985 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:48:05,003 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:48:05,003 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 /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:48:05,005 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:48:05,006 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:48:05,021 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:48:05,021 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 /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:05,023 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:48:05,023 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:05,039 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:48:05,039 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:48:05,049 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 12:48:05,049 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:05,064 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 12:48:05,064 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdb1c9d5-3e81-43ed-872f-837e3e66d8f4/bin-2019/uautomizer/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 12:48:05,080 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 12:48:05,080 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 12:48:05,144 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 12:48:05,145 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 12:48:05,145 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 12:48:05,145 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 12:48:05,145 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 12:48:05,145 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 12:48:05,145 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 12:48:05,146 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 12:48:05,146 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 12:48:05,146 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 12:48:05,146 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 12:48:05,146 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 12:48:05,148 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 12:48:05,162 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 12:48:05,165 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 12:48:05,168 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 12:48:05,207 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 12:48:05,210 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 12:48:05,211 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-28 12:48:05,212 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:48:05,213 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:48:05,213 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:48:05,213 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:48:05,216 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:48:05,217 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:48:05,223 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:48:05,223 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 12:48:05,224 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:48:05,224 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:48:05,224 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:48:05,224 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:48:05,226 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 12:48:05,226 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 12:48:05,232 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:48:05,233 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 12:48:05,233 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:48:05,233 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:48:05,234 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:48:05,234 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:48:05,234 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:48:05,235 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:48:05,235 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:48:05,238 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 12:48:05,238 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 12:48:05,239 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 12:48:05,239 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 12:48:05,239 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 12:48:05,239 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 12:48:05,239 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 12:48:05,240 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 12:48:05,240 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 12:48:05,245 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 12:48:05,249 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 12:48:05,249 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-28 12:48:05,251 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 12:48:05,251 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 12:48:05,251 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 12:48:05,252 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-28 12:48:05,253 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 12:48:05,282 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:48:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:48:05,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:48:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:48:05,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:48:05,296 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 12:48:05,305 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 12:48:05,306 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2018-11-28 12:48:05,332 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2018-11-28 12:48:05,332 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 12:48:05,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 12:48:05,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-28 12:48:05,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2018-11-28 12:48:05,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:48:05,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 12:48:05,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:48:05,335 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-28 12:48:05,335 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 12:48:05,336 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-11-28 12:48:05,337 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:48:05,339 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-28 12:48:05,340 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 12:48:05,340 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 12:48:05,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 12:48:05,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 12:48:05,340 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:48:05,340 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:48:05,341 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:48:05,341 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 12:48:05,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:48:05,341 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 12:48:05,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 12:48:05,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 12:48:05 BoogieIcfgContainer [2018-11-28 12:48:05,345 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 12:48:05,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:48:05,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:48:05,346 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:48:05,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:48:04" (3/4) ... [2018-11-28 12:48:05,349 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:48:05,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:48:05,350 INFO L168 Benchmark]: Toolchain (without parser) took 1063.70 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -69.3 MB). Peak memory consumption was 51.3 MB. Max. memory is 11.5 GB. [2018-11-28 12:48:05,351 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:48:05,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:48:05,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:48:05,352 INFO L168 Benchmark]: Boogie Preprocessor took 14.84 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:48:05,353 INFO L168 Benchmark]: RCFGBuilder took 155.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:48:05,353 INFO L168 Benchmark]: BuchiAutomizer took 721.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:48:05,354 INFO L168 Benchmark]: Witness Printer took 3.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:48:05,356 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.68 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.0 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.87 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.84 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 155.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -168.2 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 721.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 88.0 MB). Peak memory consumption was 88.0 MB. Max. memory is 11.5 GB. * Witness Printer took 3.64 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 4 SDtfs, 4 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: inital20 mio100 ax160 hnf93 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...