./Ultimate.py --spec ../../sv-benchmarks/c/properties/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 aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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-aa41828 [2018-11-22 23:58:59,220 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 23:58:59,222 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 23:58:59,230 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 23:58:59,230 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 23:58:59,231 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 23:58:59,232 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 23:58:59,233 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 23:58:59,234 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 23:58:59,235 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 23:58:59,235 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 23:58:59,235 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 23:58:59,236 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 23:58:59,237 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 23:58:59,238 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 23:58:59,238 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 23:58:59,239 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 23:58:59,240 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 23:58:59,241 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 23:58:59,243 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 23:58:59,243 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 23:58:59,244 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 23:58:59,246 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 23:58:59,246 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 23:58:59,246 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 23:58:59,247 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 23:58:59,247 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 23:58:59,248 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 23:58:59,248 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 23:58:59,249 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 23:58:59,249 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 23:58:59,250 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 23:58:59,250 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 23:58:59,250 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 23:58:59,251 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 23:58:59,251 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 23:58:59,251 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-22 23:58:59,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 23:58:59,262 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 23:58:59,262 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 23:58:59,263 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-22 23:58:59,263 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-22 23:58:59,264 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-22 23:58:59,264 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-22 23:58:59,265 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 23:58:59,265 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-22 23:58:59,265 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 23:58:59,266 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 23:58:59,266 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-22 23:58:59,266 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-22 23:58:59,267 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:58:59,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 23:58:59,297 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 23:58:59,300 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 23:58:59,301 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 23:58:59,301 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 23:58:59,301 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-22 23:58:59,345 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/data/44f760b7b/d22c8f73baf54d0c92b14cda85592941/FLAG922539672 [2018-11-22 23:58:59,649 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 23:58:59,650 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-22 23:58:59,654 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/data/44f760b7b/d22c8f73baf54d0c92b14cda85592941/FLAG922539672 [2018-11-22 23:58:59,664 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/bin-2019/uautomizer/data/44f760b7b/d22c8f73baf54d0c92b14cda85592941 [2018-11-22 23:58:59,667 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 23:58:59,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 23:58:59,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 23:58:59,668 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 23:58:59,670 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 23:58:59,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd9ff0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59, skipping insertion in model container [2018-11-22 23:58:59,672 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 23:58:59,690 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 23:58:59,794 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:58:59,796 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 23:58:59,806 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 23:58:59,815 INFO L195 MainTranslator]: Completed translation [2018-11-22 23:58:59,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59 WrapperNode [2018-11-22 23:58:59,815 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 23:58:59,816 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 23:58:59,816 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 23:58:59,816 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 23:58:59,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,834 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 23:58:59,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 23:58:59,835 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 23:58:59,835 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 23:58:59,840 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,844 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... [2018-11-22 23:58:59,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 23:58:59,846 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 23:58:59,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 23:58:59,846 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 23:58:59,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:58:59,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 23:58:59,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 23:58:59,996 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 23:58:59,996 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-22 23:58:59,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:58:59 BoogieIcfgContainer [2018-11-22 23:58:59,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 23:58:59,997 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-22 23:58:59,997 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-22 23:59:00,000 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-22 23:59:00,000 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:59:00,000 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 22.11 11:58:59" (1/3) ... [2018-11-22 23:59:00,001 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@100c8617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:59:00, skipping insertion in model container [2018-11-22 23:59:00,001 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:59:00,001 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:58:59" (2/3) ... [2018-11-22 23:59:00,002 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@100c8617 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 22.11 11:59:00, skipping insertion in model container [2018-11-22 23:59:00,002 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-22 23:59:00,002 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:58:59" (3/3) ... [2018-11-22 23:59:00,003 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c [2018-11-22 23:59:00,036 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 23:59:00,037 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-22 23:59:00,037 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-22 23:59:00,037 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-22 23:59:00,037 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 23:59:00,037 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 23:59:00,037 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-22 23:59:00,037 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 23:59:00,037 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-22 23:59:00,045 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:59:00,058 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:59:00,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:00,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:00,065 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 23:59:00,065 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:59:00,065 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-22 23:59:00,065 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-22 23:59:00,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:59:00,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:00,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:00,066 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-22 23:59:00,066 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:59:00,073 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L23-2true [2018-11-22 23:59:00,073 INFO L796 eck$LassoCheckResult]: Loop: 4#L23-2true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 5#L21true assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 4#L23-2true [2018-11-22 23:59:00,077 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,077 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-22 23:59:00,078 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,078 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,118 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,118 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,141 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-22 23:59:00,141 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,152 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-22 23:59:00,152 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,152 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,202 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:00,203 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:00,203 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:00,203 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:00,203 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:00,203 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:00,203 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:00,204 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:00,204 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 23:59:00,204 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:00,204 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:00,224 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,235 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,251 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,265 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,361 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:00,362 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,365 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,365 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,383 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:00,383 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,386 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,386 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,401 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:00,401 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,404 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,404 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,419 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:00,419 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,421 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,421 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,436 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:00,436 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,438 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,438 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,455 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:00,455 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,474 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:00,475 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:00,475 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:00,475 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:00,475 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:00,475 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:00,475 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:00,475 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:00,475 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:00,475 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-22 23:59:00,475 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:00,475 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:00,476 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,501 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,571 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:00,576 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:00,577 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 [2018-11-22 23:59:00,579 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:00,579 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:00,579 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:00,579 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:00,582 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:59:00,583 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:59:00,589 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:00,590 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 [2018-11-22 23:59:00,590 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:00,590 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:00,591 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:00,591 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:00,593 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:59:00,593 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:59:00,599 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:00,600 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 [2018-11-22 23:59:00,600 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:00,600 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:00,601 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:00,601 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:00,601 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:00,602 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:00,602 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:00,603 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:00,603 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 [2018-11-22 23:59:00,604 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:00,604 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:00,604 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:00,604 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:00,604 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:00,605 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:00,605 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:00,606 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:00,607 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-22 23:59:00,607 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:00,607 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:00,607 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:00,608 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:00,608 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:00,608 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:00,608 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:00,616 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:00,619 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:00,619 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:00,621 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:00,621 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:00,621 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:00,621 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 23:59:00,622 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:00,646 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:00,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:00,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:00,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:00,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:00,696 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-22 23:59:00,697 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2018-11-22 23:59:00,735 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 37 states and 48 transitions. Complement of second has 8 states. [2018-11-22 23:59:00,736 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 [2018-11-22 23:59:00,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:59:00,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2018-11-22 23:59:00,738 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-22 23:59:00,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:00,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-22 23:59:00,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:00,739 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-22 23:59:00,739 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:00,740 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 37 states and 48 transitions. [2018-11-22 23:59:00,742 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-22 23:59:00,744 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 37 states to 13 states and 19 transitions. [2018-11-22 23:59:00,745 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-22 23:59:00,745 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-22 23:59:00,745 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2018-11-22 23:59:00,746 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:59:00,746 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2018-11-22 23:59:00,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2018-11-22 23:59:00,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-11-22 23:59:00,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-22 23:59:00,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 18 transitions. [2018-11-22 23:59:00,762 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-22 23:59:00,762 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 18 transitions. [2018-11-22 23:59:00,762 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-22 23:59:00,762 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 18 transitions. [2018-11-22 23:59:00,763 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 6 [2018-11-22 23:59:00,763 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:00,763 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:00,763 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-22 23:59:00,763 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 23:59:00,763 INFO L794 eck$LassoCheckResult]: Stem: 89#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 90#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-22 23:59:00,764 INFO L796 eck$LassoCheckResult]: Loop: 82#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 83#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 87#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 82#L21 [2018-11-22 23:59:00,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-22 23:59:00,764 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,764 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,768 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash 44774, now seen corresponding path program 1 times [2018-11-22 23:59:00,768 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,769 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,769 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,776 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:00,777 INFO L82 PathProgramCache]: Analyzing trace with hash 29865565, now seen corresponding path program 1 times [2018-11-22 23:59:00,777 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:00,777 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:00,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:00,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:00,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:00,824 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:00,824 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:00,824 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:00,824 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:00,824 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:00,824 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:00,825 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:00,825 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:00,825 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 23:59:00,825 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:00,825 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:00,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,828 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,837 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,883 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:00,883 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,891 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,891 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,919 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:00,919 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,926 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:00,926 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:00,943 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:00,943 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:00,984 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:00,985 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:00,985 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:00,985 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:00,985 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:00,985 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:00,985 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:00,986 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:00,986 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:00,986 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-22 23:59:00,986 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:00,986 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:00,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:00,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,003 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,005 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,007 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,012 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,081 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:01,081 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:01,081 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 [2018-11-22 23:59:01,082 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,082 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,082 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,082 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,083 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,083 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,083 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,086 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:01,089 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:01,090 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:01,090 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:01,090 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:01,090 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:01,090 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-22 23:59:01,091 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:01,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,103 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,111 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:01,120 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 [2018-11-22 23:59:01,120 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9 Second operand 4 states. [2018-11-22 23:59:01,133 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 18 transitions. cyclomatic complexity: 9. Second operand 4 states. Result 31 states and 49 transitions. Complement of second has 6 states. [2018-11-22 23:59:01,134 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 [2018-11-22 23:59:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 23:59:01,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-22 23:59:01,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-22 23:59:01,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-22 23:59:01,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,135 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-22 23:59:01,135 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,135 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 31 states and 49 transitions. [2018-11-22 23:59:01,137 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:59:01,138 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 31 states to 27 states and 42 transitions. [2018-11-22 23:59:01,138 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-22 23:59:01,138 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-22 23:59:01,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 27 states and 42 transitions. [2018-11-22 23:59:01,138 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:59:01,138 INFO L705 BuchiCegarLoop]: Abstraction has 27 states and 42 transitions. [2018-11-22 23:59:01,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states and 42 transitions. [2018-11-22 23:59:01,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2018-11-22 23:59:01,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-22 23:59:01,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2018-11-22 23:59:01,140 INFO L728 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-22 23:59:01,140 INFO L608 BuchiCegarLoop]: Abstraction has 23 states and 38 transitions. [2018-11-22 23:59:01,140 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-22 23:59:01,140 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 38 transitions. [2018-11-22 23:59:01,141 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-22 23:59:01,141 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:01,141 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:01,141 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-22 23:59:01,141 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 23:59:01,142 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 168#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-22 23:59:01,142 INFO L796 eck$LassoCheckResult]: Loop: 164#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 174#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 180#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 164#L23 [2018-11-22 23:59:01,142 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,142 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-22 23:59:01,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,146 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,146 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 1 times [2018-11-22 23:59:01,146 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,152 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,152 INFO L82 PathProgramCache]: Analyzing trace with hash 925834452, now seen corresponding path program 1 times [2018-11-22 23:59:01,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,174 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:01,174 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:01,174 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:01,174 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:01,174 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:01,174 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:01,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:01,175 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:01,175 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 23:59:01,175 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:01,175 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:01,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,182 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,188 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,195 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,250 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:01,250 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,253 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,253 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,256 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:01,256 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,278 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,280 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:01,280 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,295 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:01,312 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,352 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:01,353 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:01,353 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:01,354 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:01,354 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:01,354 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:01,354 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:01,354 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:01,354 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:01,354 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-22 23:59:01,354 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:01,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:01,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,357 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,359 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,365 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,367 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,422 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:01,422 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:01,423 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 [2018-11-22 23:59:01,423 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,423 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,424 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,424 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,424 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,424 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,424 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,425 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:01,426 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 [2018-11-22 23:59:01,426 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,426 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,427 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,427 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,427 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,427 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,427 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,428 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:01,429 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 [2018-11-22 23:59:01,429 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,429 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,429 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,430 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,430 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,430 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,430 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,433 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:01,435 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:01,436 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:01,436 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:01,436 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:01,436 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:01,436 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-22 23:59:01,437 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:01,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,454 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:01,477 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 [2018-11-22 23:59:01,477 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20 Second operand 4 states. [2018-11-22 23:59:01,495 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 23 states and 38 transitions. cyclomatic complexity: 20. Second operand 4 states. Result 54 states and 85 transitions. Complement of second has 7 states. [2018-11-22 23:59:01,495 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 [2018-11-22 23:59:01,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 23:59:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-22 23:59:01,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-22 23:59:01,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-22 23:59:01,496 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,496 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-22 23:59:01,497 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 54 states and 85 transitions. [2018-11-22 23:59:01,498 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-22 23:59:01,499 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 54 states to 49 states and 78 transitions. [2018-11-22 23:59:01,500 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-22 23:59:01,500 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-22 23:59:01,500 INFO L73 IsDeterministic]: Start isDeterministic. Operand 49 states and 78 transitions. [2018-11-22 23:59:01,500 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:59:01,500 INFO L705 BuchiCegarLoop]: Abstraction has 49 states and 78 transitions. [2018-11-22 23:59:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states and 78 transitions. [2018-11-22 23:59:01,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 47. [2018-11-22 23:59:01,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-22 23:59:01,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 76 transitions. [2018-11-22 23:59:01,504 INFO L728 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-22 23:59:01,504 INFO L608 BuchiCegarLoop]: Abstraction has 47 states and 76 transitions. [2018-11-22 23:59:01,505 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-22 23:59:01,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 47 states and 76 transitions. [2018-11-22 23:59:01,506 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2018-11-22 23:59:01,506 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:01,506 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:01,506 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1] [2018-11-22 23:59:01,506 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-22 23:59:01,506 INFO L794 eck$LassoCheckResult]: Stem: 292#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 283#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 284#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 289#L23 assume 0 != main_#t~nondet4;havoc main_#t~nondet4;main_~y~0 := main_~y~0 - 1;main_~z~0 := main_#t~nondet5;havoc main_#t~nondet5; 318#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 299#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-22 23:59:01,507 INFO L796 eck$LassoCheckResult]: Loop: 293#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 294#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 314#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 293#L23 [2018-11-22 23:59:01,507 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,507 INFO L82 PathProgramCache]: Analyzing trace with hash 925832530, now seen corresponding path program 2 times [2018-11-22 23:59:01,507 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,507 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,508 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,515 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,515 INFO L82 PathProgramCache]: Analyzing trace with hash 49336, now seen corresponding path program 2 times [2018-11-22 23:59:01,515 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,515 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,516 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:01,516 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,521 INFO L82 PathProgramCache]: Analyzing trace with hash -803054137, now seen corresponding path program 1 times [2018-11-22 23:59:01,521 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,521 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,522 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:01,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,565 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:01,565 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:01,565 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:01,565 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:01,565 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:01,565 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:01,565 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:01,565 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:01,565 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 23:59:01,565 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:01,565 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:01,566 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,582 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,620 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:01,620 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,622 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,624 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:01,624 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,639 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,640 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,642 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:01,643 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,657 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,657 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,673 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:01,673 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,675 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:01,675 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:01,691 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:01,691 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:01,735 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:01,737 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:01,737 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:01,737 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:01,737 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:01,737 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:01,737 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:01,737 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:01,737 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:01,737 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-22 23:59:01,738 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:01,738 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:01,739 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,741 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,743 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,749 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,751 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:01,796 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:01,797 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:01,797 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 [2018-11-22 23:59:01,797 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,797 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,797 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,798 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,798 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,798 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,798 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,799 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:01,799 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 [2018-11-22 23:59:01,800 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,800 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,800 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,800 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,800 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,801 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,801 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,802 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:01,802 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 [2018-11-22 23:59:01,802 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:01,803 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:01,803 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:01,803 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:01,803 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:01,803 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:01,804 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:01,806 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:01,808 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:01,808 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:01,809 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:01,809 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:01,809 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:01,809 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2018-11-22 23:59:01,810 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:01,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:01,851 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 [2018-11-22 23:59:01,851 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-22 23:59:01,864 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 65 states and 102 transitions. Complement of second has 7 states. [2018-11-22 23:59:01,865 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 [2018-11-22 23:59:01,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 23:59:01,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-22 23:59:01,865 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-22 23:59:01,865 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,865 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:59:01,872 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:01,890 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 [2018-11-22 23:59:01,890 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-22 23:59:01,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 60 states and 95 transitions. Complement of second has 7 states. [2018-11-22 23:59:01,907 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 [2018-11-22 23:59:01,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 23:59:01,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-22 23:59:01,908 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-22 23:59:01,908 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,908 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:59:01,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:01,925 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:01,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:01,935 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 [2018-11-22 23:59:01,936 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40 Second operand 4 states. [2018-11-22 23:59:01,949 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 47 states and 76 transitions. cyclomatic complexity: 40. Second operand 4 states. Result 88 states and 137 transitions. Complement of second has 9 states. [2018-11-22 23:59:01,949 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 [2018-11-22 23:59:01,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-22 23:59:01,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2018-11-22 23:59:01,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-22 23:59:01,950 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,950 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-22 23:59:01,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,951 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-22 23:59:01,951 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:01,951 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 88 states and 137 transitions. [2018-11-22 23:59:01,953 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 6 [2018-11-22 23:59:01,953 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 88 states to 66 states and 103 transitions. [2018-11-22 23:59:01,954 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 15 [2018-11-22 23:59:01,954 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 17 [2018-11-22 23:59:01,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 103 transitions. [2018-11-22 23:59:01,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:59:01,954 INFO L705 BuchiCegarLoop]: Abstraction has 66 states and 103 transitions. [2018-11-22 23:59:01,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 103 transitions. [2018-11-22 23:59:01,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 38. [2018-11-22 23:59:01,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-11-22 23:59:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 61 transitions. [2018-11-22 23:59:01,957 INFO L728 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-22 23:59:01,957 INFO L608 BuchiCegarLoop]: Abstraction has 38 states and 61 transitions. [2018-11-22 23:59:01,957 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-22 23:59:01,957 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 38 states and 61 transitions. [2018-11-22 23:59:01,958 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-22 23:59:01,958 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:01,958 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:01,958 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-22 23:59:01,958 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:59:01,959 INFO L794 eck$LassoCheckResult]: Stem: 681#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 676#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 677#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 682#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 683#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 706#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-22 23:59:01,959 INFO L796 eck$LassoCheckResult]: Loop: 672#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 671#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 672#L23-2 [2018-11-22 23:59:01,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,959 INFO L82 PathProgramCache]: Analyzing trace with hash 925834450, now seen corresponding path program 1 times [2018-11-22 23:59:01,959 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-22 23:59:01,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,968 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 23:59:01,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:01,972 INFO L82 PathProgramCache]: Analyzing trace with hash 668676501, now seen corresponding path program 2 times [2018-11-22 23:59:01,972 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:01,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:01,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,973 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:01,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:01,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:01,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,009 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:02,009 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:02,009 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:02,009 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:02,009 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:02,009 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:02,009 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:02,009 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:02,009 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-22 23:59:02,009 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:02,009 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:02,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,015 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,017 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,018 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,019 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,046 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:02,046 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,053 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,053 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,068 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:02,068 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,071 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,071 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,088 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:02,088 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,106 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:02,107 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:02,108 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:02,108 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:02,108 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:02,108 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:02,108 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:02,108 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:02,108 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:02,108 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration5_Loop [2018-11-22 23:59:02,108 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:02,108 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:02,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,115 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,119 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,121 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,123 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,150 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:02,150 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:02,150 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 [2018-11-22 23:59:02,151 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,151 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,151 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,151 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,152 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:59:02,152 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:59:02,153 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,153 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 [2018-11-22 23:59:02,154 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,154 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:02,154 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,154 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,154 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,154 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:02,154 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:02,155 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,155 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 [2018-11-22 23:59:02,155 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,155 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:02,155 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,155 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,155 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,156 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:02,156 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:02,157 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:02,159 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:02,159 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:02,159 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:02,159 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:02,159 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:02,159 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 23:59:02,160 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:02,173 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,176 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,179 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:02,183 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 [2018-11-22 23:59:02,183 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30 Second operand 3 states. [2018-11-22 23:59:02,191 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 38 states and 61 transitions. cyclomatic complexity: 30. Second operand 3 states. Result 100 states and 153 transitions. Complement of second has 5 states. [2018-11-22 23:59:02,192 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:59:02,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:59:02,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 23:59:02,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-22 23:59:02,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-22 23:59:02,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,192 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-22 23:59:02,192 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,192 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 100 states and 153 transitions. [2018-11-22 23:59:02,193 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-22 23:59:02,194 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 100 states to 82 states and 129 transitions. [2018-11-22 23:59:02,194 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 13 [2018-11-22 23:59:02,194 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 14 [2018-11-22 23:59:02,194 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 129 transitions. [2018-11-22 23:59:02,194 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-22 23:59:02,194 INFO L705 BuchiCegarLoop]: Abstraction has 82 states and 129 transitions. [2018-11-22 23:59:02,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 129 transitions. [2018-11-22 23:59:02,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2018-11-22 23:59:02,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-11-22 23:59:02,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 111 transitions. [2018-11-22 23:59:02,199 INFO L728 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-22 23:59:02,199 INFO L608 BuchiCegarLoop]: Abstraction has 69 states and 111 transitions. [2018-11-22 23:59:02,199 INFO L442 BuchiCegarLoop]: ======== Iteration 6============ [2018-11-22 23:59:02,199 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 69 states and 111 transitions. [2018-11-22 23:59:02,200 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 4 [2018-11-22 23:59:02,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-22 23:59:02,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-22 23:59:02,200 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1] [2018-11-22 23:59:02,200 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-22 23:59:02,200 INFO L794 eck$LassoCheckResult]: Stem: 863#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_~x~0, main_~y~0, main_~z~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 864#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 898#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 910#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 860#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3; 870#L23 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4;main_~z~0 := main_~z~0 - 1;main_~x~0 := main_#t~nondet6;havoc main_#t~nondet6; 890#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 886#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-22 23:59:02,201 INFO L796 eck$LassoCheckResult]: Loop: 877#L23-2 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~z~0 > 0); 876#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1; 877#L23-2 [2018-11-22 23:59:02,201 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,201 INFO L82 PathProgramCache]: Analyzing trace with hash 602338671, now seen corresponding path program 3 times [2018-11-22 23:59:02,201 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:02,201 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:02,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,202 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:02,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,208 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2018-11-22 23:59:02,208 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:02,208 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:02,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,209 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:02,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,212 INFO L82 PathProgramCache]: Analyzing trace with hash -973121806, now seen corresponding path program 4 times [2018-11-22 23:59:02,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 23:59:02,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 23:59:02,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,213 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-22 23:59:02,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 23:59:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-22 23:59:02,240 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:02,240 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:02,240 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:02,240 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:02,240 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-22 23:59:02,240 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:02,240 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:02,240 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:02,240 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-22 23:59:02,240 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:02,240 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:02,241 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,254 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,256 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,257 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,260 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,281 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:02,281 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,284 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,284 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,300 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:02,300 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,303 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,319 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:02,319 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,322 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,338 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:02,338 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,343 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,343 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,345 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-22 23:59:02,345 INFO L448 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_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,362 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-22 23:59:02,362 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a55c23eb-2150-4740-9e12-ab477b76e4de/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 [2018-11-22 23:59:02,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-22 23:59:02,381 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-22 23:59:02,398 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-22 23:59:02,399 INFO L216 LassoAnalysis]: Preferences: [2018-11-22 23:59:02,399 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-22 23:59:02,400 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-22 23:59:02,400 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-22 23:59:02,400 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-22 23:59:02,400 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-22 23:59:02,400 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-22 23:59:02,400 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-22 23:59:02,400 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7b_true-termination_true-no-overflow.c_Iteration6_Loop [2018-11-22 23:59:02,400 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-22 23:59:02,400 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-22 23:59:02,400 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,404 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,407 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,410 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-22 23:59:02,438 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-22 23:59:02,438 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-22 23:59:02,438 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 [2018-11-22 23:59:02,439 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,439 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,439 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,439 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,439 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:59:02,439 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:59:02,441 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,441 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 [2018-11-22 23:59:02,442 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,442 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:02,442 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,442 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:02,442 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:02,443 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,443 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 [2018-11-22 23:59:02,444 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,444 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:02,444 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,444 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-22 23:59:02,444 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,445 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-22 23:59:02,445 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:02,447 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,447 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 [2018-11-22 23:59:02,448 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,448 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,448 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,448 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,449 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-22 23:59:02,449 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-22 23:59:02,451 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-22 23:59:02,451 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 [2018-11-22 23:59:02,451 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-22 23:59:02,451 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-22 23:59:02,452 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-22 23:59:02,452 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-22 23:59:02,452 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-22 23:59:02,452 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-22 23:59:02,452 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-22 23:59:02,454 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-22 23:59:02,455 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-22 23:59:02,455 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-22 23:59:02,456 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-22 23:59:02,456 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-22 23:59:02,456 INFO L518 LassoAnalysis]: Proved termination. [2018-11-22 23:59:02,456 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-22 23:59:02,456 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-22 23:59:02,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,484 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,488 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:02,494 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 [2018-11-22 23:59:02,494 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-22 23:59:02,506 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-22 23:59:02,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:59:02,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:59:02,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 23:59:02,506 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-22 23:59:02,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,506 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:59:02,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:02,526 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 [2018-11-22 23:59:02,526 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-22 23:59:02,533 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 109 states and 164 transitions. Complement of second has 5 states. [2018-11-22 23:59:02,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:59:02,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:59:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-11-22 23:59:02,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-22 23:59:02,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,534 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-22 23:59:02,541 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 23:59:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,545 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 23:59:02,549 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-22 23:59:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 23:59:02,554 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 [2018-11-22 23:59:02,554 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56 Second operand 3 states. [2018-11-22 23:59:02,562 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 69 states and 111 transitions. cyclomatic complexity: 56. Second operand 3 states. Result 125 states and 192 transitions. Complement of second has 4 states. [2018-11-22 23:59:02,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-22 23:59:02,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-22 23:59:02,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-22 23:59:02,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-22 23:59:02,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 2 letters. [2018-11-22 23:59:02,564 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,564 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 8 letters. Loop has 4 letters. [2018-11-22 23:59:02,565 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-22 23:59:02,565 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 125 states and 192 transitions. [2018-11-22 23:59:02,571 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:59:02,571 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 125 states to 0 states and 0 transitions. [2018-11-22 23:59:02,571 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-22 23:59:02,571 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-22 23:59:02,571 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-22 23:59:02,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-22 23:59:02,571 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:59:02,571 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:59:02,571 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 23:59:02,571 INFO L442 BuchiCegarLoop]: ======== Iteration 7============ [2018-11-22 23:59:02,572 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-22 23:59:02,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-22 23:59:02,572 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-22 23:59:02,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 22.11 11:59:02 BoogieIcfgContainer [2018-11-22 23:59:02,577 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-22 23:59:02,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 23:59:02,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 23:59:02,577 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 23:59:02,578 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:58:59" (3/4) ... [2018-11-22 23:59:02,580 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-22 23:59:02,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 23:59:02,581 INFO L168 Benchmark]: Toolchain (without parser) took 2913.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 225.4 MB). Free memory was 953.8 MB in the beginning and 1.0 GB in the end (delta: -84.3 MB). Peak memory consumption was 141.1 MB. Max. memory is 11.5 GB. [2018-11-22 23:59:02,582 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:59:02,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:59:02,583 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.40 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:59:02,583 INFO L168 Benchmark]: Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:59:02,583 INFO L168 Benchmark]: RCFGBuilder took 151.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-22 23:59:02,584 INFO L168 Benchmark]: BuchiAutomizer took 2579.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.6 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. [2018-11-22 23:59:02,584 INFO L168 Benchmark]: Witness Printer took 3.07 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 23:59:02,586 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 147.83 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 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 18.40 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 151.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -194.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2579.75 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 73.9 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 96.6 MB). Peak memory consumption was 170.5 MB. Max. memory is 11.5 GB. * Witness Printer took 3.07 ms. Allocated memory is still 1.3 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 3 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 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 7 iterations. TraceHistogramMax:3. Analysis of lassos took 1.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 48 StatesRemovedByMinimization, 5 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 69 states and ocurred in iteration 5. Nontrivial modules had stage [4, 0, 2, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 81 SDtfs, 75 SDslu, 35 SDs, 0 SdLazy, 76 SolverSat, 21 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: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 15 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 6 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.5s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...