./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 12:43:27,785 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 12:43:27,786 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 12:43:27,796 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 12:43:27,796 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 12:43:27,797 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 12:43:27,797 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 12:43:27,799 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 12:43:27,800 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 12:43:27,801 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 12:43:27,802 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 12:43:27,802 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 12:43:27,802 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 12:43:27,803 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 12:43:27,804 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 12:43:27,804 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 12:43:27,805 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 12:43:27,806 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 12:43:27,808 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 12:43:27,809 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 12:43:27,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 12:43:27,810 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 12:43:27,812 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 12:43:27,812 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 12:43:27,812 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 12:43:27,813 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 12:43:27,814 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 12:43:27,815 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 12:43:27,815 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 12:43:27,816 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 12:43:27,816 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 12:43:27,817 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 12:43:27,817 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 12:43:27,817 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 12:43:27,818 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 12:43:27,819 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 12:43:27,819 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 12:43:27,831 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 12:43:27,832 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 12:43:27,833 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 12:43:27,833 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 12:43:27,833 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 12:43:27,833 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 12:43:27,833 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 12:43:27,833 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 12:43:27,834 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 12:43:27,834 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 12:43:27,835 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 12:43:27,835 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 12:43:27,836 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 12:43:27,836 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 12:43:27,836 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 12:43:27,836 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 12:43:27,836 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 12:43:27,837 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 12:43:27,837 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_16b4a17c-d275-4fb0-83b5-ab8608957002/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 -> 41d35d9d9785c70c81ceac96efa22b5a4097e6f4 [2018-11-10 12:43:27,860 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 12:43:27,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 12:43:27,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 12:43:27,871 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 12:43:27,872 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 12:43:27,872 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-10 12:43:27,912 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/data/9510cdb8a/f4a625b958454a569b78132d94c847ba/FLAG8984e920c [2018-11-10 12:43:28,254 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 12:43:28,254 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-10 12:43:28,258 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/data/9510cdb8a/f4a625b958454a569b78132d94c847ba/FLAG8984e920c [2018-11-10 12:43:28,270 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/data/9510cdb8a/f4a625b958454a569b78132d94c847ba [2018-11-10 12:43:28,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 12:43:28,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 12:43:28,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 12:43:28,274 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 12:43:28,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 12:43:28,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd2abbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28, skipping insertion in model container [2018-11-10 12:43:28,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 12:43:28,297 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 12:43:28,394 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:43:28,396 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 12:43:28,405 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 12:43:28,414 INFO L193 MainTranslator]: Completed translation [2018-11-10 12:43:28,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28 WrapperNode [2018-11-10 12:43:28,415 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 12:43:28,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 12:43:28,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 12:43:28,415 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 12:43:28,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 12:43:28,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 12:43:28,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 12:43:28,436 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 12:43:28,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... [2018-11-10 12:43:28,448 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 12:43:28,449 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 12:43:28,449 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 12:43:28,449 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 12:43:28,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:28,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 12:43:28,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 12:43:28,662 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 12:43:28,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:43:28 BoogieIcfgContainer [2018-11-10 12:43:28,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 12:43:28,663 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 12:43:28,663 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 12:43:28,666 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 12:43:28,667 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:43:28,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 12:43:28" (1/3) ... [2018-11-10 12:43:28,668 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bddba13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:43:28, skipping insertion in model container [2018-11-10 12:43:28,668 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:43:28,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 12:43:28" (2/3) ... [2018-11-10 12:43:28,669 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bddba13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 12:43:28, skipping insertion in model container [2018-11-10 12:43:28,669 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 12:43:28,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:43:28" (3/3) ... [2018-11-10 12:43:28,671 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-10 12:43:28,727 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 12:43:28,728 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 12:43:28,728 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 12:43:28,728 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 12:43:28,728 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 12:43:28,728 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 12:43:28,728 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 12:43:28,728 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 12:43:28,729 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 12:43:28,743 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 12:43:28,763 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 12:43:28,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:28,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:28,771 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 12:43:28,771 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:43:28,771 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 12:43:28,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 12:43:28,772 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 12:43:28,772 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:28,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:28,773 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 12:43:28,773 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:43:28,780 INFO L793 eck$LassoCheckResult]: Stem: 7#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 5#L23-2true [2018-11-10 12:43:28,780 INFO L795 eck$LassoCheckResult]: Loop: 5#L23-2true assume true; 11#L20-1true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 6#L21true assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 5#L23-2true [2018-11-10 12:43:28,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:28,786 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 12:43:28,788 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:28,788 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,860 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:28,860 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 1 times [2018-11-10 12:43:28,860 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:28,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:28,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:28,872 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 12:43:28,873 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:28,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:28,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:28,875 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:28,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:28,940 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:28,941 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:28,941 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:28,941 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:28,942 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:28,942 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:28,942 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:28,942 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:28,942 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 12:43:28,942 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:28,943 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:28,958 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:28,969 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:28,972 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:28,976 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:28,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:28,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,076 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:29,076 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,081 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,081 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,107 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:29,107 INFO L446 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_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,110 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,110 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,130 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:29,130 INFO L446 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_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,133 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,134 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,152 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:29,152 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=1} Honda state: {ULTIMATE.start_main_~z~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,156 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,156 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,174 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:29,174 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,177 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,177 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,196 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:29,196 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,217 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:29,218 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:29,219 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:29,219 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:29,219 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:29,219 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:29,219 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,219 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:29,219 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:29,219 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 12:43:29,219 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:29,220 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:29,221 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,227 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,242 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,327 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:29,330 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:29,331 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,332 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,333 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,333 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,333 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,336 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:29,336 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:29,344 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:29,344 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,346 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,346 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,346 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,346 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,348 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:29,348 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:29,357 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:29,357 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,359 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,359 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:29,359 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,359 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,359 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,360 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:29,360 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:29,362 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:29,362 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,363 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,363 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:29,363 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,363 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,363 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,364 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:29,364 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:29,366 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:29,367 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,367 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,367 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:29,367 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,367 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,368 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,368 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:29,368 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:29,373 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:29,376 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:29,376 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:29,379 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:29,379 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:29,379 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:29,380 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 12:43:29,382 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:29,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:29,420 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:29,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:29,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:29,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:29,447 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 12:43:29,448 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 4 states. [2018-11-10 12:43:29,511 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 4 states. Result 42 states and 51 transitions. Complement of second has 8 states. [2018-11-10 12:43:29,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:29,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:29,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2018-11-10 12:43:29,515 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 12:43:29,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 12:43:29,517 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,517 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 12:43:29,518 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,519 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 42 states and 51 transitions. [2018-11-10 12:43:29,522 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:43:29,525 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 42 states to 18 states and 24 transitions. [2018-11-10 12:43:29,526 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 12:43:29,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-10 12:43:29,527 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 24 transitions. [2018-11-10 12:43:29,527 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:43:29,527 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 24 transitions. [2018-11-10 12:43:29,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 24 transitions. [2018-11-10 12:43:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-10 12:43:29,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 12:43:29,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 22 transitions. [2018-11-10 12:43:29,551 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-11-10 12:43:29,551 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 22 transitions. [2018-11-10 12:43:29,551 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 12:43:29,551 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 22 transitions. [2018-11-10 12:43:29,552 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 8 [2018-11-10 12:43:29,552 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:29,552 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:29,552 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 12:43:29,552 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:43:29,552 INFO L793 eck$LassoCheckResult]: Stem: 106#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 95#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 96#L23-2 assume true; 98#L20-1 [2018-11-10 12:43:29,553 INFO L795 eck$LassoCheckResult]: Loop: 98#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 101#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 102#L23 assume main_#t~nondet4 != 0;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 97#L23-2 assume true; 98#L20-1 [2018-11-10 12:43:29,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,553 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2018-11-10 12:43:29,553 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1297976, now seen corresponding path program 1 times [2018-11-10 12:43:29,558 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,558 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1805984218, now seen corresponding path program 1 times [2018-11-10 12:43:29,568 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,568 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,613 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:29,614 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:29,614 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:29,614 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:29,614 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:29,614 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,614 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:29,614 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:29,614 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 12:43:29,614 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:29,614 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:29,615 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,618 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,621 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,628 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,629 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,678 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:29,679 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:29,687 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,687 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,707 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:29,707 INFO L446 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_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:29,713 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:29,714 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:29,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:29,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:29,756 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:29,758 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:29,758 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:29,758 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:29,758 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:29,758 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:29,758 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:29,759 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:29,759 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:29,759 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 12:43:29,759 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:29,759 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:29,761 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:29,832 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:29,833 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:29,833 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:29,834 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:29,834 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:29,834 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:29,834 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:29,834 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:29,834 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:29,835 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:29,841 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:29,844 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:29,844 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:29,845 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:29,845 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:29,845 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:29,845 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 12:43:29,846 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:29,873 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:29,881 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:29,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:29,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:29,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:29,919 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 [2018-11-10 12:43:29,919 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-10 12:43:29,937 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 22 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 37 states and 50 transitions. Complement of second has 6 states. [2018-11-10 12:43:29,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:29,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:29,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 12:43:29,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-10 12:43:29,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2018-11-10 12:43:29,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,939 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 8 letters. [2018-11-10 12:43:29,939 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:29,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 50 transitions. [2018-11-10 12:43:29,941 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 12:43:29,942 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 36 states and 49 transitions. [2018-11-10 12:43:29,942 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-10 12:43:29,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 15 [2018-11-10 12:43:29,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 49 transitions. [2018-11-10 12:43:29,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:43:29,943 INFO L705 BuchiCegarLoop]: Abstraction has 36 states and 49 transitions. [2018-11-10 12:43:29,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states and 49 transitions. [2018-11-10 12:43:29,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2018-11-10 12:43:29,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-11-10 12:43:29,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 42 transitions. [2018-11-10 12:43:29,946 INFO L728 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-10 12:43:29,946 INFO L608 BuchiCegarLoop]: Abstraction has 29 states and 42 transitions. [2018-11-10 12:43:29,946 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 12:43:29,946 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 29 states and 42 transitions. [2018-11-10 12:43:29,947 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-10 12:43:29,947 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:29,947 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:29,947 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 12:43:29,947 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:43:29,948 INFO L793 eck$LassoCheckResult]: Stem: 203#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 193#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 194#L23-2 assume true; 195#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 199#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 200#L23 [2018-11-10 12:43:29,948 INFO L795 eck$LassoCheckResult]: Loop: 200#L23 assume !(main_#t~nondet4 != 0);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 204#L23-2 assume true; 211#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 210#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 200#L23 [2018-11-10 12:43:29,948 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,948 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-10 12:43:29,948 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1585078, now seen corresponding path program 1 times [2018-11-10 12:43:29,958 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,959 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,959 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,966 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:29,966 INFO L82 PathProgramCache]: Analyzing trace with hash 384105885, now seen corresponding path program 1 times [2018-11-10 12:43:29,966 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:29,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:29,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:29,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:29,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:29,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,004 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:30,005 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:30,005 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:30,005 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:30,005 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:30,005 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:30,005 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:30,005 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:30,005 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 12:43:30,005 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:30,005 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:30,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,011 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,021 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,026 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,031 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,105 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:30,105 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,117 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,117 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,128 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,128 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,148 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,148 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,153 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,153 INFO L446 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_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,171 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,171 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,188 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,188 INFO L446 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_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,191 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,191 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,208 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,208 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,211 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,211 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,215 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,215 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,235 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,258 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:30,258 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,312 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:30,313 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:30,314 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:30,314 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:30,314 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:30,314 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:30,314 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:30,314 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:30,314 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:30,314 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 12:43:30,314 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:30,314 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:30,315 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,318 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,323 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,325 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,373 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:30,373 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:30,374 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,374 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,374 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,377 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,377 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,377 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,378 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,378 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,379 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,379 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,380 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,380 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,380 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,380 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,380 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,380 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,382 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,382 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,382 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,383 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,383 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,383 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,383 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,384 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,384 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,386 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,387 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,387 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,387 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,388 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,388 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,389 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:30,389 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:30,396 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,396 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,397 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,397 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,397 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,397 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,397 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,398 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,398 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,399 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,399 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,400 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,400 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,400 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,400 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,405 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,407 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:30,410 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:30,410 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:30,410 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:30,410 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:30,410 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:30,410 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-10 12:43:30,411 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:30,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,427 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:30,453 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 [2018-11-10 12:43:30,454 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18 Second operand 4 states. [2018-11-10 12:43:30,482 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 29 states and 42 transitions. cyclomatic complexity: 18. Second operand 4 states. Result 71 states and 99 transitions. Complement of second has 7 states. [2018-11-10 12:43:30,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:30,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:30,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-10 12:43:30,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 4 letters. [2018-11-10 12:43:30,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:30,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:43:30,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:30,484 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 5 letters. Loop has 8 letters. [2018-11-10 12:43:30,484 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:30,485 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 71 states and 99 transitions. [2018-11-10 12:43:30,487 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:43:30,489 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 71 states to 64 states and 89 transitions. [2018-11-10 12:43:30,489 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 18 [2018-11-10 12:43:30,489 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 19 [2018-11-10 12:43:30,489 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 89 transitions. [2018-11-10 12:43:30,489 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:43:30,490 INFO L705 BuchiCegarLoop]: Abstraction has 64 states and 89 transitions. [2018-11-10 12:43:30,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states and 89 transitions. [2018-11-10 12:43:30,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 62. [2018-11-10 12:43:30,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-11-10 12:43:30,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 87 transitions. [2018-11-10 12:43:30,498 INFO L728 BuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2018-11-10 12:43:30,498 INFO L608 BuchiCegarLoop]: Abstraction has 62 states and 87 transitions. [2018-11-10 12:43:30,498 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 12:43:30,498 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 62 states and 87 transitions. [2018-11-10 12:43:30,499 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-10 12:43:30,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:30,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:30,500 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1, 1] [2018-11-10 12:43:30,500 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-10 12:43:30,500 INFO L793 eck$LassoCheckResult]: Stem: 356#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 345#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 346#L23-2 assume true; 347#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 402#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 401#L23 assume main_#t~nondet4 != 0;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 378#L23-2 assume true; 377#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 364#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 365#L23 [2018-11-10 12:43:30,500 INFO L795 eck$LassoCheckResult]: Loop: 365#L23 assume !(main_#t~nondet4 != 0);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 366#L23-2 assume true; 372#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 370#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 365#L23 [2018-11-10 12:43:30,501 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,501 INFO L82 PathProgramCache]: Analyzing trace with hash 384046303, now seen corresponding path program 2 times [2018-11-10 12:43:30,501 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:30,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:30,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:30,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1585078, now seen corresponding path program 2 times [2018-11-10 12:43:30,510 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:30,511 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:30,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,512 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:30,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,520 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash 722118036, now seen corresponding path program 1 times [2018-11-10 12:43:30,520 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:30,522 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:30,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,523 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:30,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:30,578 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:30,579 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:30,579 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:30,579 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:30,579 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:30,579 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:30,579 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:30,579 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:30,580 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 12:43:30,580 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:30,580 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:30,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,585 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,613 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,617 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,667 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:30,667 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,670 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,670 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,672 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,672 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=0} Honda state: {ULTIMATE.start_main_#t~nondet4=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,695 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,695 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,699 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,699 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Honda state: {ULTIMATE.start_main_~x~0=4, ULTIMATE.start_main_#t~nondet6=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,720 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,720 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,740 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:30,740 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/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 [2018-11-10 12:43:30,744 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:30,744 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 22 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 22 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:30,765 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:30,765 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:30,823 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:30,824 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:30,824 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:30,824 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:30,825 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:30,825 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:30,825 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:30,825 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:30,825 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:30,825 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 12:43:30,825 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:30,825 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:30,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,830 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,833 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,835 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:30,871 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:30,871 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:30,872 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,872 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,872 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,872 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,872 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,873 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,873 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,873 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,874 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,874 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,875 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,875 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,875 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,875 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,875 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,876 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,876 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,877 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,877 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,877 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,877 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,877 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,878 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,878 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,880 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:30,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:30,880 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:30,880 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:30,880 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:30,881 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:30,881 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:30,881 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:30,881 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:30,883 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:30,885 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:30,885 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:30,885 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:30,885 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:30,886 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:30,886 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-10 12:43:30,886 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:30,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,903 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,907 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:30,925 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 [2018-11-10 12:43:30,925 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-10 12:43:30,941 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 86 states and 120 transitions. Complement of second has 7 states. [2018-11-10 12:43:30,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:30,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:30,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-10 12:43:30,942 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:43:30,942 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:30,942 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:43:30,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:30,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,959 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:30,963 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:30,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:30,976 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 12:43:30,976 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-10 12:43:30,995 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 81 states and 112 transitions. Complement of second has 7 states. [2018-11-10 12:43:30,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:30,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:30,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 13 transitions. [2018-11-10 12:43:30,996 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 13 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:43:30,996 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:30,996 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:43:31,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:31,028 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 12:43:31,028 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36 Second operand 4 states. [2018-11-10 12:43:31,043 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 62 states and 87 transitions. cyclomatic complexity: 36. Second operand 4 states. Result 117 states and 164 transitions. Complement of second has 9 states. [2018-11-10 12:43:31,045 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:31,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 19 transitions. [2018-11-10 12:43:31,045 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-10 12:43:31,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 13 letters. Loop has 4 letters. [2018-11-10 12:43:31,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,046 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 19 transitions. Stem has 9 letters. Loop has 8 letters. [2018-11-10 12:43:31,046 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,047 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 117 states and 164 transitions. [2018-11-10 12:43:31,050 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 9 [2018-11-10 12:43:31,051 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 117 states to 87 states and 120 transitions. [2018-11-10 12:43:31,051 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2018-11-10 12:43:31,052 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 23 [2018-11-10 12:43:31,052 INFO L73 IsDeterministic]: Start isDeterministic. Operand 87 states and 120 transitions. [2018-11-10 12:43:31,052 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:43:31,052 INFO L705 BuchiCegarLoop]: Abstraction has 87 states and 120 transitions. [2018-11-10 12:43:31,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states and 120 transitions. [2018-11-10 12:43:31,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 50. [2018-11-10 12:43:31,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-11-10 12:43:31,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 71 transitions. [2018-11-10 12:43:31,056 INFO L728 BuchiCegarLoop]: Abstraction has 50 states and 71 transitions. [2018-11-10 12:43:31,056 INFO L608 BuchiCegarLoop]: Abstraction has 50 states and 71 transitions. [2018-11-10 12:43:31,056 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 12:43:31,056 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 50 states and 71 transitions. [2018-11-10 12:43:31,060 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:43:31,060 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:31,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:31,061 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-10 12:43:31,061 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:43:31,061 INFO L793 eck$LassoCheckResult]: Stem: 866#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 855#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 856#L23-2 assume true; 862#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 874#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 867#L23 assume !(main_#t~nondet4 != 0);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 868#L23-2 assume true; 897#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 896#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 858#L23-2 [2018-11-10 12:43:31,061 INFO L795 eck$LassoCheckResult]: Loop: 858#L23-2 assume true; 875#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 857#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 858#L23-2 [2018-11-10 12:43:31,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,061 INFO L82 PathProgramCache]: Analyzing trace with hash 384105883, now seen corresponding path program 1 times [2018-11-10 12:43:31,061 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:31,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,071 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 2 times [2018-11-10 12:43:31,071 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 12:43:31,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,076 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1105490062, now seen corresponding path program 2 times [2018-11-10 12:43:31,076 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,077 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:31,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,115 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:31,115 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:31,115 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:31,115 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:31,116 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:31,116 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,116 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:31,116 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:31,116 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-10 12:43:31,116 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:31,116 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:31,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,122 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,126 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,129 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,167 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:31,167 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 23 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 23 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,170 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,170 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,186 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:31,187 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 24 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 24 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,189 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,190 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 25 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 25 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,209 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:31,209 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,227 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:31,228 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:31,228 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:31,228 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:31,229 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:31,229 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:31,229 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,229 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:31,229 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:31,229 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-10 12:43:31,229 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:31,229 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:31,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,233 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,239 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,266 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:31,267 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:31,267 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,267 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,267 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,268 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,268 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,269 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:31,269 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:31,271 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,271 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,271 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,272 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:31,272 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,272 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,272 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,272 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:31,272 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:31,273 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,274 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,274 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,274 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:31,274 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,274 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,274 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,275 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:31,275 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:31,277 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:31,278 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:31,278 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:31,279 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:31,279 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:31,279 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:31,279 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 12:43:31,279 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:31,308 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,314 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:31,320 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 12:43:31,320 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 50 states and 71 transitions. cyclomatic complexity: 28 Second operand 4 states. [2018-11-10 12:43:31,329 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 50 states and 71 transitions. cyclomatic complexity: 28. Second operand 4 states. Result 145 states and 196 transitions. Complement of second has 7 states. [2018-11-10 12:43:31,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:31,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-10 12:43:31,329 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 12:43:31,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 12:43:31,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-10 12:43:31,330 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,330 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 145 states and 196 transitions. [2018-11-10 12:43:31,332 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:43:31,333 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 145 states to 120 states and 164 transitions. [2018-11-10 12:43:31,333 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 25 [2018-11-10 12:43:31,333 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 26 [2018-11-10 12:43:31,333 INFO L73 IsDeterministic]: Start isDeterministic. Operand 120 states and 164 transitions. [2018-11-10 12:43:31,334 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 12:43:31,334 INFO L705 BuchiCegarLoop]: Abstraction has 120 states and 164 transitions. [2018-11-10 12:43:31,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states and 164 transitions. [2018-11-10 12:43:31,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 95. [2018-11-10 12:43:31,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2018-11-10 12:43:31,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 134 transitions. [2018-11-10 12:43:31,338 INFO L728 BuchiCegarLoop]: Abstraction has 95 states and 134 transitions. [2018-11-10 12:43:31,339 INFO L608 BuchiCegarLoop]: Abstraction has 95 states and 134 transitions. [2018-11-10 12:43:31,339 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-10 12:43:31,339 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 134 transitions. [2018-11-10 12:43:31,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-10 12:43:31,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 12:43:31,340 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 12:43:31,340 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1] [2018-11-10 12:43:31,340 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 12:43:31,341 INFO L793 eck$LassoCheckResult]: Stem: 1122#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 1110#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 1111#L23-2 assume true; 1152#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1120#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1121#L23-2 assume true; 1114#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1128#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3; 1129#L23 assume !(main_#t~nondet4 != 0);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 1137#L23-2 assume true; 1136#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1130#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1119#L23-2 [2018-11-10 12:43:31,341 INFO L795 eck$LassoCheckResult]: Loop: 1119#L23-2 assume true; 1135#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 1118#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 1119#L23-2 [2018-11-10 12:43:31,341 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,341 INFO L82 PathProgramCache]: Analyzing trace with hash 776280728, now seen corresponding path program 3 times [2018-11-10 12:43:31,341 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,341 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,342 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:31,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,350 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 3 times [2018-11-10 12:43:31,350 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,351 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,352 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:31,352 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,355 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,355 INFO L82 PathProgramCache]: Analyzing trace with hash 2075252337, now seen corresponding path program 4 times [2018-11-10 12:43:31,355 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 12:43:31,355 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 12:43:31,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,356 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 12:43:31,356 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 12:43:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 12:43:31,375 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:31,375 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:31,375 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:31,376 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:31,376 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 12:43:31,376 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,376 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:31,376 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:31,376 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-10 12:43:31,376 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:31,376 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:31,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,380 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,389 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,414 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:31,415 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 26 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 26 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,417 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,418 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,437 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:31,437 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_11=0} Honda state: {v_rep~unnamed0~0~false_11=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 27 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 27 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,440 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,440 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,460 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:31,461 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_11=1} Honda state: {v_rep~unnamed0~0~true_11=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 28 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 28 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,464 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,464 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,485 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:31,485 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 29 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 29 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,494 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,494 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,497 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 12:43:31,498 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 30 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 30 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,520 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 12:43:31,521 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_16b4a17c-d275-4fb0-83b5-ab8608957002/bin-2019/uautomizer/z3 Starting monitored process 31 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 31 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 12:43:31,543 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 12:43:31,565 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 12:43:31,566 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 12:43:31,566 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 12:43:31,567 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 12:43:31,567 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 12:43:31,567 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 12:43:31,567 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 12:43:31,567 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 12:43:31,567 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 12:43:31,567 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-10 12:43:31,567 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 12:43:31,567 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 12:43:31,568 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,570 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,572 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,573 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,578 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 12:43:31,610 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 12:43:31,610 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 12:43:31,611 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,611 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,611 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,612 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,612 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,613 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:31,613 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:31,616 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,616 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,616 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,616 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:31,617 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,617 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,617 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,617 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:31,617 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:31,618 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,618 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,619 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,619 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:31,619 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,619 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 12:43:31,619 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,620 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 12:43:31,620 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:31,622 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,622 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,623 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,623 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,623 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,623 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,624 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 12:43:31,624 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 12:43:31,626 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 12:43:31,626 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 12:43:31,627 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 12:43:31,627 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 12:43:31,627 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 12:43:31,627 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 12:43:31,627 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 12:43:31,628 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 12:43:31,628 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 12:43:31,629 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 12:43:31,631 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 12:43:31,631 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 12:43:31,631 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 12:43:31,631 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 12:43:31,631 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 12:43:31,631 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 12:43:31,631 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 12:43:31,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:31,670 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 12:43:31,670 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-10 12:43:31,681 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 159 states and 215 transitions. Complement of second has 7 states. [2018-11-10 12:43:31,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:31,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-10 12:43:31,682 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 12:43:31,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,683 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:43:31,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,702 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,705 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:31,712 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 12:43:31,712 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-10 12:43:31,723 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 159 states and 215 transitions. Complement of second has 7 states. [2018-11-10 12:43:31,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:31,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:31,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-10 12:43:31,724 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 12:43:31,725 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,725 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 12:43:31,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 12:43:31,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,740 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 12:43:31,743 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 12:43:31,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 12:43:31,751 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 12:43:31,751 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53 Second operand 4 states. [2018-11-10 12:43:31,760 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 95 states and 134 transitions. cyclomatic complexity: 53. Second operand 4 states. Result 187 states and 255 transitions. Complement of second has 6 states. [2018-11-10 12:43:31,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 12:43:31,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 12:43:31,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 16 transitions. [2018-11-10 12:43:31,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 12:43:31,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 15 letters. Loop has 3 letters. [2018-11-10 12:43:31,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,761 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 16 transitions. Stem has 12 letters. Loop has 6 letters. [2018-11-10 12:43:31,761 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 12:43:31,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 187 states and 255 transitions. [2018-11-10 12:43:31,762 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:43:31,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 187 states to 0 states and 0 transitions. [2018-11-10 12:43:31,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 12:43:31,763 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 12:43:31,763 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 12:43:31,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 12:43:31,763 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:43:31,763 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:43:31,763 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 12:43:31,763 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-10 12:43:31,763 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 12:43:31,763 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 12:43:31,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 12:43:31,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 12:43:31 BoogieIcfgContainer [2018-11-10 12:43:31,768 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 12:43:31,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 12:43:31,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 12:43:31,768 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 12:43:31,768 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 12:43:28" (3/4) ... [2018-11-10 12:43:31,771 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 12:43:31,771 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 12:43:31,772 INFO L168 Benchmark]: Toolchain (without parser) took 3498.84 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 960.3 MB in the beginning and 920.8 MB in the end (delta: 39.5 MB). Peak memory consumption was 187.4 MB. Max. memory is 11.5 GB. [2018-11-10 12:43:31,773 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:43:31,773 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:43:31,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.62 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:43:31,773 INFO L168 Benchmark]: Boogie Preprocessor took 12.68 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 12:43:31,774 INFO L168 Benchmark]: RCFGBuilder took 214.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 12:43:31,774 INFO L168 Benchmark]: BuchiAutomizer took 3104.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.8 MB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 11.5 GB. [2018-11-10 12:43:31,774 INFO L168 Benchmark]: Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 920.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 12:43:31,776 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.77 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 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 20.62 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.68 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 214.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.8 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -191.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3104.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.8 MB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 920.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (0 trivial, 4 deterministic, 2 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function z and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function z and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 2.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 73 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 115 SDtfs, 114 SDslu, 54 SDs, 0 SdLazy, 73 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT6 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital22 mio100 ax153 hnf100 lsp29 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 18 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...