./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/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 f9de9875f09e594325a645528f016ce12ac5c646 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 08:37:03,067 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 08:37:03,068 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 08:37:03,074 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 08:37:03,074 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 08:37:03,075 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 08:37:03,076 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 08:37:03,077 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 08:37:03,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 08:37:03,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 08:37:03,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 08:37:03,080 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 08:37:03,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 08:37:03,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 08:37:03,082 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 08:37:03,082 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 08:37:03,083 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 08:37:03,084 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 08:37:03,085 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 08:37:03,086 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 08:37:03,087 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 08:37:03,088 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 08:37:03,090 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 08:37:03,090 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 08:37:03,090 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 08:37:03,091 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 08:37:03,091 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 08:37:03,092 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 08:37:03,093 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 08:37:03,093 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 08:37:03,093 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 08:37:03,094 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 08:37:03,094 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 08:37:03,094 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 08:37:03,095 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 08:37:03,095 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 08:37:03,096 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 08:37:03,103 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 08:37:03,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 08:37:03,104 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 08:37:03,104 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 08:37:03,104 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 08:37:03,104 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 08:37:03,104 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 08:37:03,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 08:37:03,105 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 08:37:03,106 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 08:37:03,107 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 08:37:03,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 08:37:03,107 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 08:37:03,107 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 08:37:03,107 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 08:37:03,107 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 08:37:03,107 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 08:37:03,108 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_249e5da8-c733-4cff-86e0-0dcc39d527f1/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 -> f9de9875f09e594325a645528f016ce12ac5c646 [2018-11-10 08:37:03,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 08:37:03,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 08:37:03,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 08:37:03,139 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 08:37:03,139 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 08:37:03,139 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-10 08:37:03,173 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/data/43a7b6a13/c2ea7e08e3514bf6898f6e812815f284/FLAG7d3200711 [2018-11-10 08:37:03,565 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 08:37:03,565 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-10 08:37:03,569 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/data/43a7b6a13/c2ea7e08e3514bf6898f6e812815f284/FLAG7d3200711 [2018-11-10 08:37:03,578 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/data/43a7b6a13/c2ea7e08e3514bf6898f6e812815f284 [2018-11-10 08:37:03,581 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 08:37:03,582 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 08:37:03,583 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 08:37:03,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 08:37:03,585 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 08:37:03,586 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac897aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03, skipping insertion in model container [2018-11-10 08:37:03,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 08:37:03,604 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 08:37:03,699 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:37:03,701 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 08:37:03,710 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 08:37:03,718 INFO L193 MainTranslator]: Completed translation [2018-11-10 08:37:03,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03 WrapperNode [2018-11-10 08:37:03,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 08:37:03,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 08:37:03,719 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 08:37:03,719 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 08:37:03,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,745 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 08:37:03,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 08:37:03,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 08:37:03,745 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 08:37:03,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... [2018-11-10 08:37:03,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 08:37:03,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 08:37:03,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 08:37:03,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 08:37:03,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:03,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 08:37:03,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 08:37:03,930 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 08:37:03,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:37:03 BoogieIcfgContainer [2018-11-10 08:37:03,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 08:37:03,931 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 08:37:03,931 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 08:37:03,934 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 08:37:03,934 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:37:03,935 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 08:37:03" (1/3) ... [2018-11-10 08:37:03,935 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26fa4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:37:03, skipping insertion in model container [2018-11-10 08:37:03,936 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:37:03,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 08:37:03" (2/3) ... [2018-11-10 08:37:03,936 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26fa4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 08:37:03, skipping insertion in model container [2018-11-10 08:37:03,936 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 08:37:03,936 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:37:03" (3/3) ... [2018-11-10 08:37:03,938 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-10 08:37:03,987 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 08:37:03,987 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 08:37:03,987 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 08:37:03,988 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 08:37:03,988 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 08:37:03,988 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 08:37:03,988 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 08:37:03,988 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 08:37:03,988 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 08:37:04,001 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 08:37:04,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:04,018 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:37:04,019 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:37:04,025 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:37:04,025 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:37:04,025 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 08:37:04,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-10 08:37:04,026 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:04,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:37:04,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:37:04,026 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-10 08:37:04,026 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:37:04,033 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L21-2true [2018-11-10 08:37:04,033 INFO L795 eck$LassoCheckResult]: Loop: 8#L21-2true assume true; 9#L20-1true assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 4#L21true assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 8#L21-2true [2018-11-10 08:37:04,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,038 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-10 08:37:04,039 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,039 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:04,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,098 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-10 08:37:04,098 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:04,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,112 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,112 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-10 08:37:04,112 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,112 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:04,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,191 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:04,192 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:04,192 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:04,192 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:04,192 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:37:04,192 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,193 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:04,193 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:04,193 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:37:04,193 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:04,193 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:04,211 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,219 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,247 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,252 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,370 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:04,370 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,383 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,383 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,403 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:04,403 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,407 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,408 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,424 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:04,424 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,426 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,426 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,444 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:37:04,444 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,464 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:37:04,465 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:04,465 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:04,466 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:04,466 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:04,466 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:37:04,466 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,466 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:04,466 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:04,466 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 08:37:04,466 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:04,466 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:04,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,483 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,552 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:04,556 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:37:04,558 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:04,559 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:04,559 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:04,559 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:04,560 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:04,563 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:37:04,563 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:37:04,570 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:04,571 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:04,571 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:04,571 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:04,572 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:04,572 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:04,572 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:04,573 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:04,573 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:04,577 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:37:04,581 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:37:04,581 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:37:04,583 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:37:04,583 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:37:04,583 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:37:04,583 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-10 08:37:04,584 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:37:04,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:04,602 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:04,610 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:04,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:04,628 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:37:04,630 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-11-10 08:37:04,667 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 27 states and 32 transitions. Complement of second has 8 states. [2018-11-10 08:37:04,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:04,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:04,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-10 08:37:04,670 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-10 08:37:04,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:04,671 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 08:37:04,671 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:04,672 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-10 08:37:04,672 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:04,672 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-10 08:37:04,673 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:04,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 11 states and 14 transitions. [2018-11-10 08:37:04,677 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 08:37:04,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-10 08:37:04,677 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-10 08:37:04,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:37:04,678 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 08:37:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-10 08:37:04,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-10 08:37:04,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-10 08:37:04,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-10 08:37:04,694 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 08:37:04,694 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-10 08:37:04,694 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 08:37:04,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-10 08:37:04,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:04,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:37:04,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:37:04,695 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-10 08:37:04,695 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:37:04,695 INFO L793 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 80#L21-2 assume true; 88#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 81#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 82#L21-2 [2018-11-10 08:37:04,696 INFO L795 eck$LassoCheckResult]: Loop: 82#L21-2 assume true; 86#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 89#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 82#L21-2 [2018-11-10 08:37:04,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,696 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-10 08:37:04,696 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:04,697 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,703 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 2 times [2018-11-10 08:37:04,703 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:04,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,710 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:04,710 INFO L82 PathProgramCache]: Analyzing trace with hash 150863077, now seen corresponding path program 1 times [2018-11-10 08:37:04,710 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:04,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:04,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,711 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:37:04,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:04,749 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:04,749 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:04,750 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:04,750 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:04,750 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:37:04,750 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,750 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:04,750 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:04,750 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 08:37:04,750 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:04,750 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:04,752 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,754 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,762 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,766 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,842 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:04,842 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,847 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,847 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,867 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:04,867 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,875 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,875 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,877 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:04,878 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,919 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:04,919 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,923 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:04,923 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,949 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:37:04,949 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:04,970 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:37:04,971 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:04,971 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:04,971 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:04,972 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:04,972 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:37:04,972 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:04,972 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:04,972 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:04,972 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 08:37:04,972 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:04,972 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:04,974 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,982 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,988 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,990 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:04,995 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,052 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:05,053 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:37:05,053 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,054 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,056 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:37:05,056 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:37:05,060 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,061 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,061 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,061 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,062 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,062 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,062 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,062 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,063 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,064 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,064 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,065 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,065 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,066 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,069 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:37:05,071 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:37:05,072 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:37:05,072 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:37:05,072 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:37:05,072 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:37:05,072 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-10 08:37:05,073 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:37:05,105 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,119 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:05,125 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-10 08:37:05,125 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-10 08:37:05,137 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 18 states and 23 transitions. Complement of second has 6 states. [2018-11-10 08:37:05,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-10 08:37:05,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-10 08:37:05,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-10 08:37:05,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,139 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-10 08:37:05,139 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,139 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-11-10 08:37:05,140 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:05,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-11-10 08:37:05,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-10 08:37:05,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-10 08:37:05,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-10 08:37:05,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:37:05,141 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-10 08:37:05,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-10 08:37:05,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-10 08:37:05,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 08:37:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2018-11-10 08:37:05,143 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-11-10 08:37:05,143 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-11-10 08:37:05,143 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 08:37:05,143 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2018-11-10 08:37:05,143 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:05,143 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:37:05,143 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:37:05,144 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-10 08:37:05,144 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:37:05,144 INFO L793 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 156#L21-2 assume true; 170#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 157#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 158#L21-2 assume true; 163#L20-1 [2018-11-10 08:37:05,144 INFO L795 eck$LassoCheckResult]: Loop: 163#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 166#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 162#L21-2 assume true; 163#L20-1 [2018-11-10 08:37:05,144 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,144 INFO L82 PathProgramCache]: Analyzing trace with hash 889541472, now seen corresponding path program 2 times [2018-11-10 08:37:05,144 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:05,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,150 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,150 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 1 times [2018-11-10 08:37:05,150 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,152 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:37:05,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,156 INFO L82 PathProgramCache]: Analyzing trace with hash 381788035, now seen corresponding path program 3 times [2018-11-10 08:37:05,156 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,157 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 08:37:05,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,188 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:05,188 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:05,188 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:05,188 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:05,188 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:37:05,188 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,188 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:05,188 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:05,188 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 08:37:05,188 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:05,188 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:05,189 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,191 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,200 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,202 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,205 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,256 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:05,256 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,260 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,260 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,262 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:05,262 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,278 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,278 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,296 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:37:05,296 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,313 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:37:05,314 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:05,314 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:05,314 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:05,314 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:05,314 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:37:05,315 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,315 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:05,315 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:05,315 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 08:37:05,315 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:05,315 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:05,316 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,330 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,334 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,338 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,375 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:05,375 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:37:05,375 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,376 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,376 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,376 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-10 08:37:05,376 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,377 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-10 08:37:05,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,379 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,380 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,380 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,380 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,381 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,381 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,381 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,381 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,381 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,384 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:37:05,386 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:37:05,386 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:37:05,386 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:37:05,386 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:37:05,387 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:37:05,387 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 08:37:05,387 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:37:05,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,403 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,406 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:05,423 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 08:37:05,423 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-10 08:37:05,429 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 33 states and 42 transitions. Complement of second has 7 states. [2018-11-10 08:37:05,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:05,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-10 08:37:05,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 08:37:05,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 08:37:05,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,430 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 08:37:05,430 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,430 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 42 transitions. [2018-11-10 08:37:05,432 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:05,432 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 26 states and 33 transitions. [2018-11-10 08:37:05,432 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-10 08:37:05,432 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-10 08:37:05,432 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2018-11-10 08:37:05,433 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 08:37:05,433 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-10 08:37:05,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2018-11-10 08:37:05,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2018-11-10 08:37:05,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-10 08:37:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2018-11-10 08:37:05,434 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-10 08:37:05,434 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-10 08:37:05,434 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 08:37:05,434 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2018-11-10 08:37:05,435 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 08:37:05,435 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 08:37:05,435 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 08:37:05,435 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2018-11-10 08:37:05,436 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 08:37:05,436 INFO L793 eck$LassoCheckResult]: Stem: 262#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 257#L21-2 assume true; 267#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 260#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 261#L21-2 assume true; 266#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 277#L21 assume !(main_#t~nondet3 != 0);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 274#L21-2 assume true; 264#L20-1 [2018-11-10 08:37:05,436 INFO L795 eck$LassoCheckResult]: Loop: 264#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 270#L21 assume main_#t~nondet3 != 0;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 263#L21-2 assume true; 264#L20-1 [2018-11-10 08:37:05,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,436 INFO L82 PathProgramCache]: Analyzing trace with hash 381788097, now seen corresponding path program 2 times [2018-11-10 08:37:05,436 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,437 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:37:05,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,444 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 2 times [2018-11-10 08:37:05,444 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,445 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:37:05,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,450 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,450 INFO L82 PathProgramCache]: Analyzing trace with hash 775809922, now seen corresponding path program 3 times [2018-11-10 08:37:05,450 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 08:37:05,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 08:37:05,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,451 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 08:37:05,451 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 08:37:05,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 08:37:05,476 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:05,477 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:05,477 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:05,477 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:05,477 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 08:37:05,477 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,477 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:05,477 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:05,477 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 08:37:05,477 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:05,477 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:05,479 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,491 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,492 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,493 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,498 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,536 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:05,536 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,545 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,545 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,562 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:05,562 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,564 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,564 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,567 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:05,567 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=1, ULTIMATE.start_main_~d~0=1} Honda state: {ULTIMATE.start_main_#t~nondet4=1, ULTIMATE.start_main_~d~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,583 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,583 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,598 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:05,598 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,601 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,601 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,616 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 08:37:05,617 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_7=0} Honda state: {v_rep~unnamed0~0~false_7=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,619 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 08:37:05,619 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_249e5da8-c733-4cff-86e0-0dcc39d527f1/bin-2019/uautomizer/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,636 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 08:37:05,636 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 08:37:05,653 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 08:37:05,654 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 08:37:05,654 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 08:37:05,654 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 08:37:05,654 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 08:37:05,654 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 08:37:05,655 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 08:37:05,655 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 08:37:05,655 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 08:37:05,655 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 08:37:05,655 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 08:37:05,655 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 08:37:05,656 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 08:37:05,702 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 08:37:05,702 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 08:37:05,702 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,703 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,703 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,703 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,703 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,704 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,704 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,705 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,705 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,705 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,705 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,706 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,706 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,706 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,706 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,709 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,710 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,711 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,711 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,711 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,711 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,712 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:37:05,712 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:37:05,715 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,716 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,716 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,716 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,716 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,716 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,717 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 08:37:05,718 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 08:37:05,723 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 08:37:05,724 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-10 08:37:05,724 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 08:37:05,724 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 08:37:05,724 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 08:37:05,725 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 08:37:05,725 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 08:37:05,725 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 08:37:05,725 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 08:37:05,727 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 08:37:05,730 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 08:37:05,730 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 08:37:05,730 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 08:37:05,730 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 08:37:05,730 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 08:37:05,730 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-10 08:37:05,731 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 08:37:05,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:05,767 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 08:37:05,767 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-10 08:37:05,777 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 30 states and 36 transitions. Complement of second has 7 states. [2018-11-10 08:37:05,778 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:05,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:05,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-10 08:37:05,778 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 08:37:05,778 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,778 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:37:05,785 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,788 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,791 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:05,802 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 08:37:05,802 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-10 08:37:05,812 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 28 states and 35 transitions. Complement of second has 7 states. [2018-11-10 08:37:05,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:05,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:05,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2018-11-10 08:37:05,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 08:37:05,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,813 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 08:37:05,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 08:37:05,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 08:37:05,826 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 08:37:05,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 08:37:05,844 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-11-10 08:37:05,844 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-10 08:37:05,850 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10. Second operand 4 states. Result 40 states and 50 transitions. Complement of second has 6 states. [2018-11-10 08:37:05,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-10 08:37:05,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 08:37:05,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-10 08:37:05,852 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 08:37:05,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-10 08:37:05,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,853 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-10 08:37:05,853 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 08:37:05,853 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2018-11-10 08:37:05,854 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:37:05,854 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 08:37:05,855 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 08:37:05,855 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 08:37:05,855 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 08:37:05,855 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 08:37:05,855 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 08:37:05,855 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 08:37:05,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 08:37:05 BoogieIcfgContainer [2018-11-10 08:37:05,860 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 08:37:05,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 08:37:05,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 08:37:05,860 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 08:37:05,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 08:37:03" (3/4) ... [2018-11-10 08:37:05,863 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 08:37:05,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 08:37:05,864 INFO L168 Benchmark]: Toolchain (without parser) took 2282.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -104.8 MB). Peak memory consumption was 34.1 MB. Max. memory is 11.5 GB. [2018-11-10 08:37:05,865 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:37:05,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 136.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:37:05,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:37:05,866 INFO L168 Benchmark]: Boogie Preprocessor took 14.66 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 08:37:05,866 INFO L168 Benchmark]: RCFGBuilder took 171.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 08:37:05,867 INFO L168 Benchmark]: BuchiAutomizer took 1928.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. [2018-11-10 08:37:05,867 INFO L168 Benchmark]: Witness Printer took 3.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 08:37:05,870 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 136.25 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.58 ms. Allocated memory is still 1.0 GB. Free memory is still 949.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.66 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 171.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1928.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 64.2 MB). Peak memory consumption was 64.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.21 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function d 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 x and consists of 4 locations. One nondeterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 1.4s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 22 states and ocurred in iteration 3. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 39 SDtfs, 36 SDslu, 18 SDs, 0 SdLazy, 34 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital25 mio100 ax148 hnf100 lsp27 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 10 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...