./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 b98f7fd40026cd249d1c292b5307435abc3c32a2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 09:11:28,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 09:11:28,942 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 09:11:28,948 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 09:11:28,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 09:11:28,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 09:11:28,950 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 09:11:28,950 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 09:11:28,951 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 09:11:28,952 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 09:11:28,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 09:11:28,952 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 09:11:28,953 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 09:11:28,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 09:11:28,954 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 09:11:28,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 09:11:28,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 09:11:28,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 09:11:28,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 09:11:28,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 09:11:28,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 09:11:28,958 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 09:11:28,959 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 09:11:28,960 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 09:11:28,960 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 09:11:28,960 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 09:11:28,961 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 09:11:28,961 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 09:11:28,961 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 09:11:28,962 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 09:11:28,962 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 09:11:28,963 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 09:11:28,963 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 09:11:28,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 09:11:28,963 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 09:11:28,964 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 09:11:28,964 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-12-08 09:11:28,972 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 09:11:28,972 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 09:11:28,973 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Use SBE=true [2018-12-08 09:11:28,973 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Use old map elimination=false [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-12-08 09:11:28,973 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-12-08 09:11:28,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 09:11:28,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-12-08 09:11:28,975 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 09:11:28,975 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 09:11:28,975 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-12-08 09:11:28,975 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 09:11:28,975 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-08 09:11:28,975 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-12-08 09:11:28,976 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-12-08 09:11:28,976 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_e944e355-1482-485d-8817-1e800f564a99/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 -> b98f7fd40026cd249d1c292b5307435abc3c32a2 [2018-12-08 09:11:28,993 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 09:11:29,002 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 09:11:29,004 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 09:11:29,005 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 09:11:29,005 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 09:11:29,006 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c [2018-12-08 09:11:29,042 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/data/a7f2166b8/0182313468074be6930d423e34763a80/FLAGcadcf73ce [2018-12-08 09:11:29,448 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 09:11:29,449 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c [2018-12-08 09:11:29,452 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/data/a7f2166b8/0182313468074be6930d423e34763a80/FLAGcadcf73ce [2018-12-08 09:11:29,460 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/data/a7f2166b8/0182313468074be6930d423e34763a80 [2018-12-08 09:11:29,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 09:11:29,463 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 09:11:29,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 09:11:29,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 09:11:29,465 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 09:11:29,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432dabb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29, skipping insertion in model container [2018-12-08 09:11:29,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,471 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 09:11:29,480 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 09:11:29,559 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:11:29,561 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 09:11:29,570 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 09:11:29,577 INFO L195 MainTranslator]: Completed translation [2018-12-08 09:11:29,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29 WrapperNode [2018-12-08 09:11:29,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 09:11:29,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 09:11:29,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 09:11:29,578 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 09:11:29,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,586 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 09:11:29,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 09:11:29,596 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 09:11:29,596 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 09:11:29,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,605 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,606 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... [2018-12-08 09:11:29,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 09:11:29,607 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 09:11:29,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 09:11:29,607 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 09:11:29,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 09:11:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 09:11:29,741 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 09:11:29,741 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-08 09:11:29,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:29 BoogieIcfgContainer [2018-12-08 09:11:29,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 09:11:29,742 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-12-08 09:11:29,742 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-12-08 09:11:29,745 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-12-08 09:11:29,746 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:11:29,746 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 08.12 09:11:29" (1/3) ... [2018-12-08 09:11:29,747 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bd07d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 09:11:29, skipping insertion in model container [2018-12-08 09:11:29,747 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:11:29,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 09:11:29" (2/3) ... [2018-12-08 09:11:29,748 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2bd07d56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 08.12 09:11:29, skipping insertion in model container [2018-12-08 09:11:29,748 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-12-08 09:11:29,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:29" (3/3) ... [2018-12-08 09:11:29,749 INFO L375 chiAutomizerObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c [2018-12-08 09:11:29,795 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 09:11:29,795 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-12-08 09:11:29,795 INFO L375 BuchiCegarLoop]: Hoare is false [2018-12-08 09:11:29,795 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-12-08 09:11:29,795 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 09:11:29,795 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 09:11:29,796 INFO L379 BuchiCegarLoop]: Difference is false [2018-12-08 09:11:29,796 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 09:11:29,796 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-12-08 09:11:29,807 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-12-08 09:11:29,820 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 09:11:29,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:11:29,820 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:11:29,826 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 09:11:29,826 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 09:11:29,826 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-12-08 09:11:29,826 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-12-08 09:11:29,827 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-12-08 09:11:29,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:11:29,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:11:29,827 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 09:11:29,828 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-12-08 09:11:29,834 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~k~0, main_~i~0, main_~j~0, main_~n~0;havoc main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~j~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 10#L20true assume main_~k~0 >= 1;main_~i~0 := 0; 11#L22-2true [2018-12-08 09:11:29,834 INFO L796 eck$LassoCheckResult]: Loop: 11#L22-2true assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 5#L24-2true assume !(main_~j~0 <= main_~i~0); 3#L24-3true main_~i~0 := 1 + main_~i~0; 11#L22-2true [2018-12-08 09:11:29,839 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:29,839 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-12-08 09:11:29,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:29,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:29,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:29,897 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:29,898 INFO L82 PathProgramCache]: Analyzing trace with hash 42930, now seen corresponding path program 1 times [2018-12-08 09:11:29,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:29,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:29,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:29,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:29,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:29,906 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:29,906 INFO L82 PathProgramCache]: Analyzing trace with hash 29684975, now seen corresponding path program 1 times [2018-12-08 09:11:29,906 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:29,906 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:29,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,907 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:29,907 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:29,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:29,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-08 09:11:29,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-08 09:11:29,970 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:29,970 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:29,970 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:29,970 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:29,970 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 09:11:29,970 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:29,971 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:29,971 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:29,971 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 09:11:29,971 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:29,971 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:29,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:29,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,060 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:30,060 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,063 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,063 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,082 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,082 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_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,085 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,085 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,099 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,099 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_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,102 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,102 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,119 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 09:11:30,119 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,206 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 09:11:30,207 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:30,208 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:30,208 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:30,208 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:30,208 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 09:11:30,208 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,208 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:30,208 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:30,208 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-12-08 09:11:30,208 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:30,208 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:30,210 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,213 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,251 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:30,254 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 09:11:30,255 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 [2018-12-08 09:11:30,256 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,256 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,256 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,256 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,258 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:30,258 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:30,262 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:30,262 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 [2018-12-08 09:11:30,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,263 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,263 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,264 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:30,264 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:30,268 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:30,268 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 [2018-12-08 09:11:30,269 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,269 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:30,269 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,269 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,269 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,270 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:30,270 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:30,274 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 09:11:30,279 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2018-12-08 09:11:30,279 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-12-08 09:11:30,281 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 09:11:30,281 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 09:11:30,281 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 09:11:30,281 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-12-08 09:11:30,282 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 09:11:30,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:30,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:30,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:30,308 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:30,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:30,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-12-08 09:11:30,345 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-12-08 09:11:30,407 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 35 states and 53 transitions. Complement of second has 9 states. [2018-12-08 09:11:30,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 6 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:30,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-12-08 09:11:30,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 33 transitions. [2018-12-08 09:11:30,410 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 3 letters. [2018-12-08 09:11:30,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 5 letters. Loop has 3 letters. [2018-12-08 09:11:30,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,411 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 6 states and 33 transitions. Stem has 2 letters. Loop has 6 letters. [2018-12-08 09:11:30,411 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,412 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 53 transitions. [2018-12-08 09:11:30,414 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 09:11:30,417 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 14 states and 19 transitions. [2018-12-08 09:11:30,418 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-08 09:11:30,418 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-12-08 09:11:30,418 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 19 transitions. [2018-12-08 09:11:30,418 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 09:11:30,419 INFO L705 BuchiCegarLoop]: Abstraction has 14 states and 19 transitions. [2018-12-08 09:11:30,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states and 19 transitions. [2018-12-08 09:11:30,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 13. [2018-12-08 09:11:30,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-08 09:11:30,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 18 transitions. [2018-12-08 09:11:30,434 INFO L728 BuchiCegarLoop]: Abstraction has 13 states and 18 transitions. [2018-12-08 09:11:30,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-08 09:11:30,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-08 09:11:30,437 INFO L87 Difference]: Start difference. First operand 13 states and 18 transitions. Second operand 4 states. [2018-12-08 09:11:30,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-08 09:11:30,452 INFO L93 Difference]: Finished difference Result 11 states and 14 transitions. [2018-12-08 09:11:30,453 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-08 09:11:30,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2018-12-08 09:11:30,453 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 09:11:30,454 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-12-08 09:11:30,454 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-12-08 09:11:30,454 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-12-08 09:11:30,454 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-12-08 09:11:30,454 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 09:11:30,454 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-12-08 09:11:30,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-12-08 09:11:30,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-12-08 09:11:30,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-12-08 09:11:30,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-12-08 09:11:30,455 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-08 09:11:30,455 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-12-08 09:11:30,455 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-12-08 09:11:30,455 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-12-08 09:11:30,455 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-12-08 09:11:30,455 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:11:30,455 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:11:30,455 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-12-08 09:11:30,455 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-12-08 09:11:30,455 INFO L794 eck$LassoCheckResult]: Stem: 121#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~k~0, main_~i~0, main_~j~0, main_~n~0;havoc main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~j~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 122#L20 assume main_~k~0 >= 1;main_~i~0 := 0; 120#L22-2 [2018-12-08 09:11:30,455 INFO L796 eck$LassoCheckResult]: Loop: 120#L22-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 123#L24-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := main_~j~0 + main_~k~0; 124#L24-2 assume !(main_~j~0 <= main_~i~0); 119#L24-3 main_~i~0 := 1 + main_~i~0; 120#L22-2 [2018-12-08 09:11:30,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,456 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 2 times [2018-12-08 09:11:30,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:30,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1332592, now seen corresponding path program 1 times [2018-12-08 09:11:30,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,461 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:11:30,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,466 INFO L82 PathProgramCache]: Analyzing trace with hash 920235987, now seen corresponding path program 1 times [2018-12-08 09:11:30,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,466 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:30,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,490 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:30,491 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:30,491 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:30,491 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:30,491 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 09:11:30,491 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,491 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:30,491 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:30,491 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 09:11:30,491 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:30,491 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:30,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,538 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:30,538 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,540 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,556 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,556 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/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 [2018-12-08 09:11:30,558 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,558 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,573 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,574 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,576 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,593 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 09:11:30,593 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,722 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 09:11:30,723 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:30,724 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:30,724 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:30,724 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:30,724 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 09:11:30,724 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,724 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:30,724 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:30,724 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-12-08 09:11:30,724 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:30,725 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:30,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,732 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,736 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,772 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:30,772 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 09:11:30,773 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 [2018-12-08 09:11:30,773 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,773 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,773 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,774 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,775 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:30,775 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:30,777 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:30,777 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 [2018-12-08 09:11:30,777 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,778 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,778 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,778 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,779 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:30,779 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:30,781 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:30,782 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 [2018-12-08 09:11:30,782 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:30,782 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:30,782 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:30,782 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:30,782 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:30,783 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:30,783 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:30,786 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 09:11:30,790 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-12-08 09:11:30,790 INFO L444 ModelExtractionUtils]: 2 out of 6 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-12-08 09:11:30,790 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 09:11:30,790 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-12-08 09:11:30,790 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 09:11:30,791 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~n~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~n~0 Supporting invariants [] [2018-12-08 09:11:30,791 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-12-08 09:11:30,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:30,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:30,805 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:30,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-08 09:11:30,811 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-12-08 09:11:30,811 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-12-08 09:11:30,818 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 2. Second operand 3 states. Result 10 states and 13 transitions. Complement of second has 4 states. [2018-12-08 09:11:30,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:30,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 09:11:30,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-12-08 09:11:30,818 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 4 letters. [2018-12-08 09:11:30,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 6 letters. Loop has 4 letters. [2018-12-08 09:11:30,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,819 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 2 letters. Loop has 8 letters. [2018-12-08 09:11:30,819 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:30,819 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 13 transitions. [2018-12-08 09:11:30,819 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 09:11:30,820 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 12 transitions. [2018-12-08 09:11:30,820 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 09:11:30,820 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-12-08 09:11:30,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2018-12-08 09:11:30,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 09:11:30,820 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2018-12-08 09:11:30,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2018-12-08 09:11:30,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-12-08 09:11:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-08 09:11:30,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2018-12-08 09:11:30,821 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-08 09:11:30,821 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2018-12-08 09:11:30,821 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-12-08 09:11:30,821 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2018-12-08 09:11:30,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 09:11:30,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:11:30,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:11:30,822 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-12-08 09:11:30,822 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 09:11:30,822 INFO L794 eck$LassoCheckResult]: Stem: 175#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~k~0, main_~i~0, main_~j~0, main_~n~0;havoc main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~j~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 176#L20 assume main_~k~0 >= 1;main_~i~0 := 0; 180#L22-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 177#L24-2 [2018-12-08 09:11:30,822 INFO L796 eck$LassoCheckResult]: Loop: 177#L24-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := main_~j~0 + main_~k~0; 177#L24-2 [2018-12-08 09:11:30,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,822 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-12-08 09:11:30,822 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,822 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:30,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,828 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,828 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 1 times [2018-12-08 09:11:30,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:30,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:30,832 INFO L82 PathProgramCache]: Analyzing trace with hash 957581, now seen corresponding path program 1 times [2018-12-08 09:11:30,832 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:30,832 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:30,832 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,833 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:30,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:30,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:30,856 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:30,856 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:30,856 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:30,857 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:30,857 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 09:11:30,857 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,857 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:30,857 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:30,857 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-12-08 09:11:30,857 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:30,857 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:30,858 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,859 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,860 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,864 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,865 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,870 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:30,926 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:30,926 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,928 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,928 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,930 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,931 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,945 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,945 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,947 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,947 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,961 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,962 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,963 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,964 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,979 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,979 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,981 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,981 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:30,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:30,995 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:30,997 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:30,997 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,012 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:31,012 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:31,027 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:31,027 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_5=0} Honda state: {v_rep~unnamed0~0~false_5=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,030 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:31,030 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:31,044 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:31,044 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,047 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:31,047 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 18 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 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,064 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 09:11:31,064 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:31,534 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 09:11:31,535 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:31,535 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:31,535 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:31,535 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:31,535 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 09:11:31,535 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,535 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:31,536 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:31,536 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration3_Lasso [2018-12-08 09:11:31,536 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:31,536 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:31,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,548 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,549 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,550 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,551 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,552 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,554 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,607 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:31,607 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 09:11:31,607 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 [2018-12-08 09:11:31,607 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:31,608 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:31,608 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:31,608 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:31,609 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:31,609 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:31,618 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 09:11:31,624 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 09:11:31,624 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 09:11:31,624 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 09:11:31,625 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-08 09:11:31,625 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 09:11:31,625 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0 - 1 >= 0] [2018-12-08 09:11:31,627 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-08 09:11:31,640 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:31,644 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:31,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:31,647 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:31,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:31,647 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-08 09:11:31,647 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-12-08 09:11:31,662 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 11 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 14 states and 18 transitions. Complement of second has 6 states. [2018-12-08 09:11:31,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 09:11:31,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-12-08 09:11:31,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-12-08 09:11:31,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:31,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2018-12-08 09:11:31,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:31,663 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2018-12-08 09:11:31,663 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:31,663 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 18 transitions. [2018-12-08 09:11:31,664 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 09:11:31,664 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 11 states and 14 transitions. [2018-12-08 09:11:31,664 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-12-08 09:11:31,665 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-12-08 09:11:31,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-12-08 09:11:31,665 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-12-08 09:11:31,665 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-12-08 09:11:31,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-12-08 09:11:31,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 8. [2018-12-08 09:11:31,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-08 09:11:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-12-08 09:11:31,666 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 09:11:31,666 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-12-08 09:11:31,666 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-12-08 09:11:31,666 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-12-08 09:11:31,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-12-08 09:11:31,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-12-08 09:11:31,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-12-08 09:11:31,667 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-12-08 09:11:31,667 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-12-08 09:11:31,667 INFO L794 eck$LassoCheckResult]: Stem: 240#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~k~0, main_~i~0, main_~j~0, main_~n~0;havoc main_~k~0;havoc main_~i~0;havoc main_~j~0;havoc main_~n~0;main_~k~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~i~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~j~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 241#L20 assume main_~k~0 >= 1;main_~i~0 := 0; 245#L22-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 243#L24-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := main_~j~0 + main_~k~0; 244#L24-2 assume !(main_~j~0 <= main_~i~0); 238#L24-3 main_~i~0 := 1 + main_~i~0; 239#L22-2 assume !!(main_~i~0 < main_~n~0);main_~j~0 := 0; 242#L24-2 [2018-12-08 09:11:31,668 INFO L796 eck$LassoCheckResult]: Loop: 242#L24-2 assume !!(main_~j~0 <= main_~i~0);main_~j~0 := main_~j~0 + main_~k~0; 242#L24-2 [2018-12-08 09:11:31,668 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:31,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1537455462, now seen corresponding path program 2 times [2018-12-08 09:11:31,668 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:31,668 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:31,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 09:11:31,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:31,677 INFO L82 PathProgramCache]: Analyzing trace with hash 53, now seen corresponding path program 2 times [2018-12-08 09:11:31,677 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:31,677 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:31,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,678 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:11:31,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:31,681 INFO L82 PathProgramCache]: Analyzing trace with hash -416479044, now seen corresponding path program 3 times [2018-12-08 09:11:31,681 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-08 09:11:31,681 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-08 09:11:31,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,682 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-12-08 09:11:31,682 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 09:11:31,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 09:11:31,729 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:31,729 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:31,729 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:31,729 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:31,729 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-12-08 09:11:31,729 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,729 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:31,730 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:31,730 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-08 09:11:31,730 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:31,730 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:31,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,733 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,745 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,747 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:31,788 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:31,788 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 19 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 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,790 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:31,790 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:31,792 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-12-08 09:11:31,792 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 20 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 20 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,807 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-12-08 09:11:31,807 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e944e355-1482-485d-8817-1e800f564a99/bin-2019/uautomizer/z3 Starting monitored process 21 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 21 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:31,835 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-12-08 09:11:31,835 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-12-08 09:11:32,254 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-12-08 09:11:32,256 INFO L216 LassoAnalysis]: Preferences: [2018-12-08 09:11:32,256 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-12-08 09:11:32,256 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-12-08 09:11:32,256 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-12-08 09:11:32,256 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-12-08 09:11:32,256 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-12-08 09:11:32,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-12-08 09:11:32,257 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-12-08 09:11:32,257 INFO L131 ssoRankerPreferences]: Filename of dumped script: BrockschmidtCookFuhs-CAV2013-Fig9a_true-termination_true-no-overflow.c_Iteration4_Lasso [2018-12-08 09:11:32,257 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-12-08 09:11:32,257 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-12-08 09:11:32,258 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,273 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,274 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,275 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-12-08 09:11:32,317 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-12-08 09:11:32,317 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-12-08 09:11:32,317 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 09:11:32,318 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,318 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:32,318 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,318 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,318 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,318 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:32,318 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:32,319 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,319 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 [2018-12-08 09:11:32,319 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,319 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:32,319 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,319 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,319 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,320 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:32,320 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:32,320 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,320 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-12-08 09:11:32,320 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,320 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:32,320 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,320 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,320 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,321 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:32,321 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:32,321 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,321 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 [2018-12-08 09:11:32,321 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,321 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:32,322 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,322 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,322 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,322 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:32,322 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:32,322 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,322 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 [2018-12-08 09:11:32,323 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,323 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-12-08 09:11:32,323 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,323 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-12-08 09:11:32,323 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-12-08 09:11:32,323 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,323 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 [2018-12-08 09:11:32,324 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,324 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,324 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,324 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,325 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:32,325 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:32,327 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-12-08 09:11:32,327 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 [2018-12-08 09:11:32,327 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-12-08 09:11:32,327 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-12-08 09:11:32,328 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-12-08 09:11:32,328 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-12-08 09:11:32,329 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-12-08 09:11:32,329 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-12-08 09:11:32,339 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-12-08 09:11:32,344 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-12-08 09:11:32,344 INFO L444 ModelExtractionUtils]: 10 out of 16 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-12-08 09:11:32,344 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-12-08 09:11:32,345 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-12-08 09:11:32,345 INFO L518 LassoAnalysis]: Proved termination. [2018-12-08 09:11:32,345 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~j~0) = 2*ULTIMATE.start_main_~i~0 - 2*ULTIMATE.start_main_~j~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~k~0 - 1 >= 0] [2018-12-08 09:11:32,346 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-12-08 09:11:32,377 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:32,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:32,384 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-08 09:11:32,384 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-12-08 09:11:32,397 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-12-08 09:11:32,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:32,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 09:11:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-12-08 09:11:32,398 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 09:11:32,398 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:32,398 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 09:11:32,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,413 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,416 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:32,416 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-08 09:11:32,416 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-12-08 09:11:32,429 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-12-08 09:11:32,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:32,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 09:11:32,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 5 transitions. [2018-12-08 09:11:32,429 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 5 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 09:11:32,429 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:32,429 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-12-08 09:11:32,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 09:11:32,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 09:11:32,450 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-08 09:11:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 09:11:32,450 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.2 stem predicates 1 loop predicates [2018-12-08 09:11:32,450 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-12-08 09:11:32,463 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 10 states and 12 transitions. Complement of second has 5 states. [2018-12-08 09:11:32,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 2 stem states 1 non-accepting loop states 1 accepting loop states [2018-12-08 09:11:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-12-08 09:11:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-12-08 09:11:32,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 1 letters. [2018-12-08 09:11:32,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:32,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 1 letters. [2018-12-08 09:11:32,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:32,464 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 7 letters. Loop has 2 letters. [2018-12-08 09:11:32,464 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-12-08 09:11:32,464 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-12-08 09:11:32,464 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 09:11:32,464 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 0 states and 0 transitions. [2018-12-08 09:11:32,464 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-12-08 09:11:32,465 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-12-08 09:11:32,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-12-08 09:11:32,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-12-08 09:11:32,465 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 09:11:32,465 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 09:11:32,465 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-08 09:11:32,465 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-12-08 09:11:32,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-12-08 09:11:32,465 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-12-08 09:11:32,465 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-12-08 09:11:32,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 08.12 09:11:32 BoogieIcfgContainer [2018-12-08 09:11:32,469 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-12-08 09:11:32,469 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 09:11:32,469 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 09:11:32,469 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 09:11:32,469 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 09:11:29" (3/4) ... [2018-12-08 09:11:32,471 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 09:11:32,471 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 09:11:32,472 INFO L168 Benchmark]: Toolchain (without parser) took 3009.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 962.4 MB in the beginning and 1.1 GB in the end (delta: -170.4 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-08 09:11:32,473 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:11:32,473 INFO L168 Benchmark]: CACSL2BoogieTranslator took 114.52 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 09:11:32,473 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 09:11:32,473 INFO L168 Benchmark]: Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 946.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 09:11:32,474 INFO L168 Benchmark]: RCFGBuilder took 134.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-08 09:11:32,474 INFO L168 Benchmark]: BuchiAutomizer took 2726.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.7 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. [2018-12-08 09:11:32,474 INFO L168 Benchmark]: Witness Printer took 2.51 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. [2018-12-08 09:11:32,476 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 114.52 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 17.72 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.7 MB in the beginning and 946.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 134.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -159.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2726.75 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 82.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -26.7 MB). Peak memory consumption was 56.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.51 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 5 terminating modules (1 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * i and consists of 6 locations. One deterministic module has affine ranking function -1 * i + n and consists of 3 locations. One deterministic module has affine ranking function 2 * i + -2 * j + 1 and consists of 4 locations. One nondeterministic module has affine ranking function 2 * i + -2 * j + 1 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 4 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 1/1 HoareTripleCheckerStatistics: 27 SDtfs, 34 SDslu, 9 SDs, 0 SdLazy, 63 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax159 hnf98 lsp61 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf92 smp100 dnf100 smp100 tf103 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 12 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 1.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...