./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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 0.1.23-5842f4b [2018-11-18 17:17:19,726 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:17:19,727 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:17:19,735 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:17:19,736 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:17:19,736 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:17:19,737 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:17:19,739 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:17:19,740 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:17:19,740 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:17:19,741 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:17:19,741 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:17:19,742 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:17:19,742 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:17:19,743 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:17:19,743 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:17:19,744 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:17:19,745 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:17:19,747 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:17:19,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:17:19,748 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:17:19,749 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:17:19,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:17:19,751 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:17:19,751 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:17:19,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:17:19,753 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:17:19,753 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:17:19,754 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:17:19,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:17:19,755 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:17:19,755 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:17:19,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:17:19,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:17:19,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:17:19,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:17:19,757 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 17:17:19,767 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:17:19,767 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:17:19,768 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 17:17:19,768 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 17:17:19,768 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 17:17:19,769 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 17:17:19,769 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:17:19,769 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 17:17:19,770 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:17:19,771 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 17:17:19,771 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:17:19,771 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:17:19,771 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 17:17:19,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:17:19,771 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 17:17:19,771 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 17:17:19,772 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 17:17:19,772 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_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:19,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:17:19,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:17:19,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:17:19,806 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:17:19,806 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:17:19,807 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-18 17:17:19,846 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/data/c3f96428c/236cf36d3c504f5c92c9c402046aaf0c/FLAG2d836320a [2018-11-18 17:17:20,244 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:17:20,244 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-18 17:17:20,248 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/data/c3f96428c/236cf36d3c504f5c92c9c402046aaf0c/FLAG2d836320a [2018-11-18 17:17:20,256 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/bin-2019/uautomizer/data/c3f96428c/236cf36d3c504f5c92c9c402046aaf0c [2018-11-18 17:17:20,258 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:17:20,259 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:17:20,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:17:20,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:17:20,262 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:17:20,262 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72aa726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20, skipping insertion in model container [2018-11-18 17:17:20,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:17:20,279 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:17:20,375 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:17:20,377 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:17:20,385 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:17:20,393 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:17:20,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20 WrapperNode [2018-11-18 17:17:20,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:17:20,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:17:20,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:17:20,394 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:17:20,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,419 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:17:20,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:17:20,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:17:20,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:17:20,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,425 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... [2018-11-18 17:17:20,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:17:20,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:17:20,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:17:20,431 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:17:20,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:20,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:17:20,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:17:20,597 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:17:20,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:17:20 BoogieIcfgContainer [2018-11-18 17:17:20,598 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:17:20,598 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 17:17:20,598 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 17:17:20,601 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 17:17:20,601 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:17:20,601 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 05:17:20" (1/3) ... [2018-11-18 17:17:20,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1be4a1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:17:20, skipping insertion in model container [2018-11-18 17:17:20,602 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:17:20,602 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:17:20" (2/3) ... [2018-11-18 17:17:20,602 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1be4a1e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 05:17:20, skipping insertion in model container [2018-11-18 17:17:20,603 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 17:17:20,603 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:17:20" (3/3) ... [2018-11-18 17:17:20,604 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c [2018-11-18 17:17:20,638 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 17:17:20,639 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 17:17:20,639 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 17:17:20,639 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 17:17:20,639 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:17:20,639 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:17:20,639 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 17:17:20,639 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:17:20,639 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 17:17:20,648 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 17:17:20,662 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:20,662 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:17:20,662 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:17:20,666 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 17:17:20,667 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:17:20,667 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 17:17:20,667 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 17:17:20,667 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:20,667 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:17:20,667 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:17:20,668 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 17:17:20,668 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:17:20,673 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 8#L21-2true [2018-11-18 17:17:20,673 INFO L796 eck$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 !(0 != main_#t~nondet3);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 [2018-11-18 17:17:20,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:20,677 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 17:17:20,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:20,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:20,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:20,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,734 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:20,734 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-18 17:17:20,734 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:20,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:20,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:20,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:20,748 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-18 17:17:20,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:20,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:20,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:20,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:20,830 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:20,830 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:20,831 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:20,831 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:20,831 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:17:20,831 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:20,831 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:20,831 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:20,831 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 17:17:20,832 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:20,832 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:20,850 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:20,861 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:20,863 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:20,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:20,873 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:20,878 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,008 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:21,008 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,017 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,017 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,037 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,038 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,040 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,040 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,055 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,055 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,058 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:17:21,075 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,092 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:17:21,093 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:21,093 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:21,093 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:21,093 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:21,093 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:17:21,093 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:21,093 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:21,093 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:21,093 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 17:17:21,093 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:21,093 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:21,095 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,114 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,117 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,171 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:21,176 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:17:21,177 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 [2018-11-18 17:17:21,178 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:21,178 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:21,179 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:21,179 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:21,182 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 17:17:21,182 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 17:17:21,189 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:21,189 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 [2018-11-18 17:17:21,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:21,190 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:21,190 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:21,190 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:21,190 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:21,191 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:21,191 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:21,195 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:17:21,199 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 17:17:21,199 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:17:21,201 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:17:21,201 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:17:21,201 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:17:21,201 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~d~0) = 1*ULTIMATE.start_main_~d~0 Supporting invariants [] [2018-11-18 17:17:21,202 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:17:21,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:21,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:21,255 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:21,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:21,272 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 [2018-11-18 17:17:21,273 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-11-18 17:17:21,305 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. [2018-11-18 17:17:21,305 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 [2018-11-18 17:17:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:21,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-18 17:17:21,308 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-18 17:17:21,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 17:17:21,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,309 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 17:17:21,309 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,310 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-18 17:17:21,311 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:21,314 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 11 states and 14 transitions. [2018-11-18 17:17:21,315 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 17:17:21,315 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-18 17:17:21,315 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-18 17:17:21,315 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:17:21,315 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 17:17:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-18 17:17:21,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 17:17:21,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 17:17:21,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-18 17:17:21,331 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 17:17:21,331 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 17:17:21,331 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 17:17:21,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-18 17:17:21,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:21,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:17:21,332 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:17:21,332 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 17:17:21,332 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:17:21,332 INFO L794 eck$LassoCheckResult]: Stem: 85#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 80#L21-2 assume true; 88#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 81#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 82#L21-2 [2018-11-18 17:17:21,332 INFO L796 eck$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 !(0 != main_#t~nondet3);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 [2018-11-18 17:17:21,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,332 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-18 17:17:21,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,333 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:21,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,340 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,340 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 2 times [2018-11-18 17:17:21,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:21,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,347 INFO L82 PathProgramCache]: Analyzing trace with hash 150863077, now seen corresponding path program 1 times [2018-11-18 17:17:21,347 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,347 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,348 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:17:21,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,382 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:21,382 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:21,382 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:21,382 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:21,383 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:17:21,383 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:21,383 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:21,383 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:21,383 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 17:17:21,383 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:21,383 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:21,384 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,388 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,394 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,398 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,475 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:21,475 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,485 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,485 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,501 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,501 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,504 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,504 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,506 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,506 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=0} Honda state: {ULTIMATE.start_main_#t~nondet3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,532 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,532 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,554 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,554 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,556 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,556 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:17:21,575 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,602 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:17:21,603 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:21,603 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:21,603 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:21,603 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:21,603 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:17:21,603 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:21,603 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:21,603 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:21,603 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 17:17:21,603 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:21,603 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:21,605 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,609 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,612 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,624 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,626 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,632 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,693 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:21,693 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:17:21,693 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 [2018-11-18 17:17:21,694 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:21,694 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:21,694 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:21,695 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:21,698 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 17:17:21,698 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 17:17:21,702 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:21,703 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 [2018-11-18 17:17:21,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:21,703 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:21,703 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:21,703 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:21,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:21,705 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:21,705 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:21,707 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:21,707 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 [2018-11-18 17:17:21,708 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:21,708 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:21,708 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:21,708 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:21,708 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:21,709 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:21,709 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:21,712 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:17:21,715 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 17:17:21,715 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:17:21,716 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:17:21,716 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:17:21,716 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:17:21,716 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 17:17:21,716 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:17:21,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:21,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:21,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:21,749 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 [2018-11-18 17:17:21,749 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 17:17:21,758 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. [2018-11-18 17:17:21,759 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 [2018-11-18 17:17:21,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:21,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2018-11-18 17:17:21,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 17:17:21,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-18 17:17:21,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,760 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 12 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-18 17:17:21,760 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:21,761 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-11-18 17:17:21,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:21,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-11-18 17:17:21,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 17:17:21,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-18 17:17:21,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-18 17:17:21,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:17:21,762 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 17:17:21,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-18 17:17:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 16. [2018-11-18 17:17:21,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 17:17:21,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 21 transitions. [2018-11-18 17:17:21,764 INFO L728 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-11-18 17:17:21,764 INFO L608 BuchiCegarLoop]: Abstraction has 16 states and 21 transitions. [2018-11-18 17:17:21,764 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 17:17:21,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 16 states and 21 transitions. [2018-11-18 17:17:21,765 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:21,765 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:17:21,765 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:17:21,766 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-18 17:17:21,766 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:17:21,766 INFO L794 eck$LassoCheckResult]: Stem: 161#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 156#L21-2 assume true; 170#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 157#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 158#L21-2 assume true; 163#L20-1 [2018-11-18 17:17:21,766 INFO L796 eck$LassoCheckResult]: Loop: 163#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 166#L21 assume 0 != main_#t~nondet3;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 [2018-11-18 17:17:21,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,766 INFO L82 PathProgramCache]: Analyzing trace with hash 889541472, now seen corresponding path program 2 times [2018-11-18 17:17:21,766 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,766 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:21,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,772 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,772 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 1 times [2018-11-18 17:17:21,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,773 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:17:21,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:21,779 INFO L82 PathProgramCache]: Analyzing trace with hash 381788035, now seen corresponding path program 3 times [2018-11-18 17:17:21,779 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:21,779 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:21,780 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:17:21,781 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:21,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:21,812 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:21,813 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:21,813 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:21,813 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:21,813 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:17:21,813 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:21,813 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:21,813 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:21,813 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 17:17:21,813 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:21,814 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:21,815 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,819 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,822 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,826 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,829 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,889 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:21,889 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,893 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,893 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,895 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:21,896 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet3=7} Honda state: {ULTIMATE.start_main_#t~nondet3=7} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:21,911 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:21,927 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:17:21,927 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:21,943 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:17:21,944 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:21,945 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:21,945 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:21,945 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:21,945 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:17:21,945 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:21,945 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:21,945 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:21,945 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 17:17:21,945 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:21,946 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:21,947 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,952 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,962 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,964 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:21,971 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,013 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:22,013 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:17:22,013 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 [2018-11-18 17:17:22,014 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,014 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:22,014 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,014 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-18 17:17:22,014 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,014 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-18 17:17:22,015 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:22,017 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:22,017 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 [2018-11-18 17:17:22,018 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,018 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:22,018 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,018 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,018 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,019 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:22,019 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:22,021 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:17:22,023 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 17:17:22,023 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:17:22,023 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:17:22,023 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:17:22,023 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:17:22,023 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 17:17:22,024 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:17:22,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,039 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:22,057 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 [2018-11-18 17:17:22,057 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 16 states and 21 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-18 17:17:22,064 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. [2018-11-18 17:17:22,064 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 [2018-11-18 17:17:22,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:22,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-18 17:17:22,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 17:17:22,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 17:17:22,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,065 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 17:17:22,065 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,065 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 33 states and 42 transitions. [2018-11-18 17:17:22,067 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:22,068 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 33 states to 26 states and 33 transitions. [2018-11-18 17:17:22,068 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 17:17:22,068 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-18 17:17:22,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 33 transitions. [2018-11-18 17:17:22,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 17:17:22,068 INFO L705 BuchiCegarLoop]: Abstraction has 26 states and 33 transitions. [2018-11-18 17:17:22,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states and 33 transitions. [2018-11-18 17:17:22,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 22. [2018-11-18 17:17:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-18 17:17:22,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 28 transitions. [2018-11-18 17:17:22,070 INFO L728 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-18 17:17:22,070 INFO L608 BuchiCegarLoop]: Abstraction has 22 states and 28 transitions. [2018-11-18 17:17:22,070 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 17:17:22,070 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 22 states and 28 transitions. [2018-11-18 17:17:22,070 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 17:17:22,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 17:17:22,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 17:17:22,071 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 2, 1, 1, 1, 1] [2018-11-18 17:17:22,071 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 17:17:22,071 INFO L794 eck$LassoCheckResult]: Stem: 262#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 256#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_~x~0, main_~y~0, main_~d~0;havoc main_~x~0;havoc main_~y~0;havoc main_~d~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~d~0 := main_#t~nondet2;havoc main_#t~nondet2; 257#L21-2 assume true; 267#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 260#L21 assume 0 != main_#t~nondet3;havoc main_#t~nondet3;main_~x~0 := main_~x~0 - 1;main_~d~0 := main_#t~nondet4;havoc main_#t~nondet4; 261#L21-2 assume true; 266#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 277#L21 assume !(0 != main_#t~nondet3);havoc main_#t~nondet3;main_~x~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~y~0 := main_~y~0 - 1;main_~d~0 := main_~d~0 - 1; 274#L21-2 assume true; 264#L20-1 [2018-11-18 17:17:22,071 INFO L796 eck$LassoCheckResult]: Loop: 264#L20-1 assume !!((main_~x~0 > 0 && main_~y~0 > 0) && main_~d~0 > 0); 270#L21 assume 0 != main_#t~nondet3;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 [2018-11-18 17:17:22,071 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,071 INFO L82 PathProgramCache]: Analyzing trace with hash 381788097, now seen corresponding path program 2 times [2018-11-18 17:17:22,071 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:22,071 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:22,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,072 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:17:22,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,079 INFO L82 PathProgramCache]: Analyzing trace with hash 41794, now seen corresponding path program 2 times [2018-11-18 17:17:22,080 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:22,080 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:22,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,081 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:17:22,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,084 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,085 INFO L82 PathProgramCache]: Analyzing trace with hash 775809922, now seen corresponding path program 3 times [2018-11-18 17:17:22,085 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 17:17:22,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 17:17:22,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,086 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 17:17:22,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:17:22,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:17:22,111 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:22,111 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:22,111 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:22,111 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:22,111 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 17:17:22,111 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:22,111 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:22,111 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:22,111 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 17:17:22,111 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:22,111 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:22,112 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,120 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,128 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,131 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,169 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:22,169 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,179 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:22,179 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:22,194 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:22,195 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=1} Honda state: {ULTIMATE.start_main_~y~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,197 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:22,197 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:22,200 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:22,200 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Honda state: {ULTIMATE.start_main_#t~nondet4=4, ULTIMATE.start_main_~d~0=4} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,215 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:22,215 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:22,231 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:22,231 INFO L448 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_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,234 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:22,234 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:22,249 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 17:17:22,250 INFO L448 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_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,252 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 17:17:22,252 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6bd3a58d-e732-418d-b4a0-d65fb89c0cd3/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 [2018-11-18 17:17:22,270 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 17:17:22,270 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 17:17:22,290 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 17:17:22,291 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 17:17:22,291 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 17:17:22,291 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 17:17:22,291 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 17:17:22,291 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 17:17:22,291 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 17:17:22,292 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 17:17:22,292 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 17:17:22,292 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig7a_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 17:17:22,292 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 17:17:22,292 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 17:17:22,293 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,299 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,300 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,302 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 17:17:22,341 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 17:17:22,342 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 17:17:22,342 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 [2018-11-18 17:17:22,342 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,343 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:22,343 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,343 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,343 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,343 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:22,344 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:22,349 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:22,349 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 [2018-11-18 17:17:22,350 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,350 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:22,350 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,350 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,350 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,351 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:22,351 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:22,353 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:22,354 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 [2018-11-18 17:17:22,354 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,354 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,354 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,354 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,357 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 17:17:22,357 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 17:17:22,360 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:22,361 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 [2018-11-18 17:17:22,361 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,361 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,361 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,362 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,362 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 17:17:22,363 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 17:17:22,365 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 17:17:22,365 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 [2018-11-18 17:17:22,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 17:17:22,366 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 17:17:22,366 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 17:17:22,366 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 17:17:22,366 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 17:17:22,367 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 17:17:22,367 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 17:17:22,369 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 17:17:22,371 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 17:17:22,371 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 17:17:22,371 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 17:17:22,371 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 17:17:22,371 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 17:17:22,372 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 17:17:22,372 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 17:17:22,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,393 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,396 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:22,409 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 [2018-11-18 17:17:22,409 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 17:17:22,415 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. [2018-11-18 17:17:22,417 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 [2018-11-18 17:17:22,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 7 transitions. [2018-11-18 17:17:22,417 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 7 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 17:17:22,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,418 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 17:17:22,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,428 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,430 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:22,441 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 [2018-11-18 17:17:22,441 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 17:17:22,452 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. [2018-11-18 17:17:22,453 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 [2018-11-18 17:17:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 6 transitions. [2018-11-18 17:17:22,453 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 6 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 17:17:22,453 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,453 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 17:17:22,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:17:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:17:22,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 17:17:22,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:17:22,492 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 [2018-11-18 17:17:22,492 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 22 states and 28 transitions. cyclomatic complexity: 10 Second operand 4 states. [2018-11-18 17:17:22,499 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. [2018-11-18 17:17:22,499 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 [2018-11-18 17:17:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 17:17:22,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-18 17:17:22,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 17:17:22,500 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,500 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2018-11-18 17:17:22,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,501 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 9 letters. Loop has 6 letters. [2018-11-18 17:17:22,501 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 17:17:22,501 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 50 transitions. [2018-11-18 17:17:22,502 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 17:17:22,502 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 0 states and 0 transitions. [2018-11-18 17:17:22,502 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 17:17:22,503 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 17:17:22,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 17:17:22,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 17:17:22,503 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:17:22,503 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:17:22,503 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 17:17:22,503 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 17:17:22,503 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 17:17:22,503 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 17:17:22,503 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 17:17:22,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 05:17:22 BoogieIcfgContainer [2018-11-18 17:17:22,508 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 17:17:22,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:17:22,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:17:22,508 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:17:22,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:17:20" (3/4) ... [2018-11-18 17:17:22,511 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 17:17:22,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:17:22,512 INFO L168 Benchmark]: Toolchain (without parser) took 2253.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 958.1 MB in the beginning and 1.0 GB in the end (delta: -70.6 MB). Peak memory consumption was 34.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,513 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:17:22,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,513 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,514 INFO L168 Benchmark]: Boogie Preprocessor took 11.60 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 939.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,514 INFO L168 Benchmark]: RCFGBuilder took 166.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,514 INFO L168 Benchmark]: BuchiAutomizer took 1909.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 11.5 GB. [2018-11-18 17:17:22,515 INFO L168 Benchmark]: Witness Printer took 3.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:17:22,517 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.92 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 25.34 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.60 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 939.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 166.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1909.62 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.2 MB). Peak memory consumption was 65.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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: 12ms 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...