./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 413fc6a41e04b7b618ff9ab274418b4a8dcf040d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:12:37,692 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:12:37,694 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:12:37,703 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:12:37,703 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:12:37,704 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:12:37,705 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:12:37,707 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:12:37,708 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:12:37,709 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:12:37,710 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:12:37,710 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:12:37,710 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:12:37,712 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:12:37,713 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:12:37,714 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:12:37,714 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:12:37,716 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:12:37,717 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:12:37,720 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:12:37,720 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:12:37,721 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:12:37,723 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:12:37,723 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:12:37,724 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:12:37,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:12:37,738 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:12:37,739 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:12:37,739 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:12:37,740 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:12:37,740 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:12:37,741 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:12:37,741 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:12:37,741 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:12:37,742 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:12:37,742 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:12:37,742 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:12:37,759 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:12:37,759 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:12:37,760 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:12:37,760 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:12:37,760 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:12:37,761 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:12:37,761 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:12:37,761 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:12:37,761 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:12:37,761 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:12:37,764 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:12:37,765 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:12:37,765 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:12:37,765 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:12:37,765 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:12:37,765 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:12:37,765 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:12:37,766 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:12:37,766 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:12:37,766 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:12:37,767 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:12:37,767 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:12:37,767 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:12:37,767 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_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 -> 413fc6a41e04b7b618ff9ab274418b4a8dcf040d [2018-10-27 06:12:37,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:12:37,809 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:12:37,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:12:37,813 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:12:37,814 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:12:37,814 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-10-27 06:12:37,856 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/data/cbd7c4b27/d9e51e2a113146dda9f723a502368672/FLAG989d3eddd [2018-10-27 06:12:38,235 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:12:38,235 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-10-27 06:12:38,240 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/data/cbd7c4b27/d9e51e2a113146dda9f723a502368672/FLAG989d3eddd [2018-10-27 06:12:38,250 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/data/cbd7c4b27/d9e51e2a113146dda9f723a502368672 [2018-10-27 06:12:38,252 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:12:38,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:12:38,254 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:12:38,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:12:38,258 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:12:38,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,261 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a63995c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38, skipping insertion in model container [2018-10-27 06:12:38,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,269 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:12:38,283 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:12:38,385 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:12:38,388 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:12:38,396 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:12:38,405 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:12:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38 WrapperNode [2018-10-27 06:12:38,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:12:38,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:12:38,406 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:12:38,406 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:12:38,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:12:38,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:12:38,434 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:12:38,434 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:12:38,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,449 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... [2018-10-27 06:12:38,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:12:38,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:12:38,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:12:38,451 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:12:38,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:38,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:12:38,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:12:38,735 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:12:38,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:38 BoogieIcfgContainer [2018-10-27 06:12:38,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:12:38,736 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:12:38,736 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:12:38,740 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:12:38,740 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:38,740 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:12:38" (1/3) ... [2018-10-27 06:12:38,741 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2835d320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:12:38, skipping insertion in model container [2018-10-27 06:12:38,741 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:38,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:12:38" (2/3) ... [2018-10-27 06:12:38,742 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2835d320 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:12:38, skipping insertion in model container [2018-10-27 06:12:38,742 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:12:38,742 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:38" (3/3) ... [2018-10-27 06:12:38,743 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c [2018-10-27 06:12:38,790 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:12:38,791 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:12:38,791 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:12:38,791 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:12:38,791 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:12:38,791 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:12:38,791 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:12:38,791 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:12:38,792 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:12:38,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:12:38,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:38,822 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:38,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:38,827 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:12:38,828 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:12:38,828 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:12:38,828 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:12:38,829 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:38,829 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:38,829 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:38,829 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:12:38,830 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:12:38,836 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~M~0 > 0; 8#L19-2true [2018-10-27 06:12:38,836 INFO L795 eck$LassoCheckResult]: Loop: 8#L19-2true assume true; 9#L18-1true assume !!(main_~x~0 != main_~M~0); 11#L19true assume main_~x~0 > main_~M~0;main_~x~0 := 0; 8#L19-2true [2018-10-27 06:12:38,843 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:38,843 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-10-27 06:12:38,845 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:38,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:38,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:38,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:38,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:38,929 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-10-27 06:12:38,929 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:38,929 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:38,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:38,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:38,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:38,944 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-10-27 06:12:38,944 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:38,944 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:38,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:38,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:39,177 WARN L179 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 7 [2018-10-27 06:12:39,248 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:39,249 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:39,249 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:39,249 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:39,249 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:39,249 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:39,250 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:39,250 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:39,250 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-10-27 06:12:39,250 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:39,250 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:39,267 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,305 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,307 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,322 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,327 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,602 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 06:12:39,607 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:39,608 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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) [2018-10-27 06:12:39,615 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,615 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:39,632 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:39,632 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:39,664 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,664 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:39,681 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:39,681 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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) [2018-10-27 06:12:39,684 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,684 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:39,690 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:39,690 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:39,715 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,716 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:39,718 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:39,718 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:39,736 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,736 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:39,753 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:39,753 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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) [2018-10-27 06:12:39,756 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:39,757 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:39,789 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:39,789 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:39,868 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:39,869 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:39,869 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:39,869 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:39,870 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:39,870 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:39,870 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:39,870 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:39,870 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:39,870 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration1_Lasso [2018-10-27 06:12:39,870 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:39,871 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:39,872 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,881 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,885 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:39,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:40,025 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:40,029 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:40,030 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 [2018-10-27 06:12:40,031 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,031 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:40,032 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,032 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,032 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,033 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:40,033 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:40,036 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:40,037 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 [2018-10-27 06:12:40,037 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,037 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:40,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,038 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,038 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,040 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:40,040 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:40,041 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:40,042 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 [2018-10-27 06:12:40,042 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,042 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,042 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,042 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,045 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:40,045 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:40,050 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:40,051 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 [2018-10-27 06:12:40,051 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,052 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:40,052 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,052 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,052 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,052 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:40,053 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:40,053 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:40,054 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 [2018-10-27 06:12:40,054 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,054 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,054 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,055 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,056 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:40,057 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:40,065 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:40,065 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 [2018-10-27 06:12:40,066 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:40,066 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:40,066 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:40,066 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:40,069 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:40,069 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:40,100 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:40,115 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:12:40,116 INFO L444 ModelExtractionUtils]: 5 out of 10 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:40,118 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:40,120 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2018-10-27 06:12:40,120 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:40,121 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~M~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~M~0 >= 0] [2018-10-27 06:12:40,148 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2018-10-27 06:12:40,300 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:40,307 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:40,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:40,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:40,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:40,354 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:12:40,355 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-10-27 06:12:40,615 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 32 states and 37 transitions. Complement of second has 6 states. [2018-10-27 06:12:40,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:40,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:12:40,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-10-27 06:12:40,619 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-10-27 06:12:40,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:40,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-10-27 06:12:40,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:40,620 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-10-27 06:12:40,620 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:40,621 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-10-27 06:12:40,622 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:40,625 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-10-27 06:12:40,626 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-10-27 06:12:40,626 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-10-27 06:12:40,627 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-10-27 06:12:40,627 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:12:40,627 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:12:40,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-10-27 06:12:40,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-27 06:12:40,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-27 06:12:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-10-27 06:12:40,645 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:12:40,645 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:12:40,646 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:12:40,646 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-10-27 06:12:40,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:40,646 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:40,646 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:40,647 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:12:40,647 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:12:40,647 INFO L793 eck$LassoCheckResult]: Stem: 95#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 94#L17 assume main_~M~0 > 0; 103#L19-2 assume true; 100#L18-1 assume !!(main_~x~0 != main_~M~0); 104#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := main_~x~0 + 1; 96#L19-2 [2018-10-27 06:12:40,647 INFO L795 eck$LassoCheckResult]: Loop: 96#L19-2 assume true; 97#L18-1 assume !!(main_~x~0 != main_~M~0); 101#L19 assume main_~x~0 > main_~M~0;main_~x~0 := 0; 96#L19-2 [2018-10-27 06:12:40,647 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,647 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-10-27 06:12:40,648 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,654 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,654 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-10-27 06:12:40,654 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,655 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,655 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,656 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,659 INFO L82 PathProgramCache]: Analyzing trace with hash -591188896, now seen corresponding path program 1 times [2018-10-27 06:12:40,660 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,660 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,661 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:40,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:40,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:40,749 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:12:40,749 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:12:40,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:40,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:40,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:40,810 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-27 06:12:40,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-10-27 06:12:40,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:12:40,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:12:40,823 INFO L87 Difference]: Start difference. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-10-27 06:12:40,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:12:40,847 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2018-10-27 06:12:40,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 06:12:40,850 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 14 transitions. [2018-10-27 06:12:40,851 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:40,851 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 12 states and 14 transitions. [2018-10-27 06:12:40,851 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-10-27 06:12:40,851 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-10-27 06:12:40,852 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2018-10-27 06:12:40,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:12:40,852 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-10-27 06:12:40,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2018-10-27 06:12:40,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-10-27 06:12:40,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-27 06:12:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-10-27 06:12:40,856 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-10-27 06:12:40,856 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-10-27 06:12:40,856 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:12:40,856 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2018-10-27 06:12:40,856 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:40,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:40,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:40,857 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-10-27 06:12:40,857 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:12:40,857 INFO L793 eck$LassoCheckResult]: Stem: 154#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 152#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 153#L17 assume main_~M~0 > 0; 161#L19-2 assume true; 156#L18-1 [2018-10-27 06:12:40,857 INFO L795 eck$LassoCheckResult]: Loop: 156#L18-1 assume !!(main_~x~0 != main_~M~0); 159#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := main_~x~0 + 1; 155#L19-2 assume true; 156#L18-1 [2018-10-27 06:12:40,858 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,858 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2018-10-27 06:12:40,858 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,858 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,859 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,862 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 1 times [2018-10-27 06:12:40,862 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,868 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:40,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969405, now seen corresponding path program 2 times [2018-10-27 06:12:40,868 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:40,868 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:40,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:12:40,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:40,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:40,929 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:40,929 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:40,929 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:40,930 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:40,930 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:40,930 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:40,930 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:40,930 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:40,930 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:12:40,930 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:40,930 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:40,931 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:40,944 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:40,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,057 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-10-27 06:12:41,386 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:41,386 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,390 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:41,390 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:41,409 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:41,409 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:41,413 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:41,430 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:41,430 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,434 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:41,434 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,453 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:41,456 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:41,600 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:41,601 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:41,601 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:41,601 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:41,601 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:41,602 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:41,602 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:41,602 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:41,602 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:41,602 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:12:41,602 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:41,602 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:41,603 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,607 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,610 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,651 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:41,651 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:41,651 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 [2018-10-27 06:12:41,652 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:41,652 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:41,652 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:41,652 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:41,653 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:41,654 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:41,657 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:41,660 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 [2018-10-27 06:12:41,660 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:41,660 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:41,661 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:41,661 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:41,662 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:41,662 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:41,668 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:41,669 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 [2018-10-27 06:12:41,669 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:41,670 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:41,670 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:41,670 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:41,670 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:41,670 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:41,671 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:41,676 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:41,680 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:12:41,680 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:41,681 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:41,681 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:12:41,681 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:41,681 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~M~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-10-27 06:12:41,682 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:12:41,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:41,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:41,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:41,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:41,720 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:41,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:41,735 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 [2018-10-27 06:12:41,735 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-10-27 06:12:41,746 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 22 transitions. Complement of second has 5 states. [2018-10-27 06:12:41,748 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:41,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:12:41,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-10-27 06:12:41,748 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-10-27 06:12:41,748 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:41,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-10-27 06:12:41,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:41,749 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-10-27 06:12:41,749 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:41,749 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-10-27 06:12:41,750 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:41,750 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 12 states and 13 transitions. [2018-10-27 06:12:41,751 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:12:41,751 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:12:41,751 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-10-27 06:12:41,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:12:41,751 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-10-27 06:12:41,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-10-27 06:12:41,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-10-27 06:12:41,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-27 06:12:41,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-10-27 06:12:41,754 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-10-27 06:12:41,754 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-10-27 06:12:41,754 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:12:41,754 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2018-10-27 06:12:41,755 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:12:41,755 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:12:41,755 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:12:41,755 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-10-27 06:12:41,756 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:12:41,756 INFO L793 eck$LassoCheckResult]: Stem: 225#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 223#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~M~0;havoc main_~x~0;havoc main_~M~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~M~0 := main_#t~nondet1;havoc main_#t~nondet1; 224#L17 assume main_~M~0 > 0; 226#L19-2 assume true; 227#L18-1 assume !!(main_~x~0 != main_~M~0); 231#L19 assume main_~x~0 > main_~M~0;main_~x~0 := 0; 228#L19-2 assume true; 229#L18-1 [2018-10-27 06:12:41,756 INFO L795 eck$LassoCheckResult]: Loop: 229#L18-1 assume !!(main_~x~0 != main_~M~0); 230#L19 assume !(main_~x~0 > main_~M~0);main_~x~0 := main_~x~0 + 1; 232#L19-2 assume true; 229#L18-1 [2018-10-27 06:12:41,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:41,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969343, now seen corresponding path program 2 times [2018-10-27 06:12:41,756 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:41,756 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:41,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,758 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:41,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:41,762 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 2 times [2018-10-27 06:12:41,762 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:41,763 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:41,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,764 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:41,764 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,767 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:41,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1148833563, now seen corresponding path program 2 times [2018-10-27 06:12:41,767 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:12:41,768 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:12:41,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,768 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:12:41,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:12:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:12:41,799 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:41,799 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:41,799 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:41,799 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:41,799 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:12:41,799 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:41,799 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:41,800 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:41,800 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:12:41,800 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:41,800 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:41,801 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,808 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,814 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:41,880 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:41,881 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,883 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:41,884 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:41,903 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:12:41,903 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,907 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:12:41,907 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_6981bf46-ddf8-477f-9368-dcc39bfc56c4/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 [2018-10-27 06:12:41,941 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:12:41,941 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:12:42,086 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:12:42,087 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:12:42,087 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:12:42,087 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:12:42,087 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:12:42,087 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:12:42,087 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:12:42,088 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:12:42,088 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:12:42,088 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8b_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:12:42,088 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:12:42,088 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:12:42,089 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:42,092 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:42,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:12:42,183 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:12:42,183 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:12:42,184 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 [2018-10-27 06:12:42,184 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:42,184 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:42,185 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:42,185 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:42,186 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:12:42,186 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:12:42,188 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:12:42,189 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 [2018-10-27 06:12:42,189 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:12:42,197 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:12:42,198 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:12:42,198 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:12:42,198 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:12:42,198 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:12:42,198 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:12:42,200 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:12:42,205 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:12:42,205 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:12:42,205 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:12:42,205 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:12:42,205 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:12:42,206 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~M~0, ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~M~0 - 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-10-27 06:12:42,206 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:12:42,233 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:42,267 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 [2018-10-27 06:12:42,267 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-10-27 06:12:42,278 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 14 transitions. Complement of second has 5 states. [2018-10-27 06:12:42,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:42,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:12:42,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-10-27 06:12:42,280 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-10-27 06:12:42,280 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:42,280 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:12:42,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,300 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:42,329 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-10-27 06:12:42,329 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-10-27 06:12:42,347 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 14 transitions. Complement of second has 5 states. [2018-10-27 06:12:42,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:42,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:12:42,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-10-27 06:12:42,348 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-10-27 06:12:42,348 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:42,349 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:12:42,378 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:12:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:12:42,389 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:12:42,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:12:42,411 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-10-27 06:12:42,411 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-10-27 06:12:42,421 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 15 states and 16 transitions. Complement of second has 6 states. [2018-10-27 06:12:42,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:12:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:12:42,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-10-27 06:12:42,422 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-10-27 06:12:42,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:42,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2018-10-27 06:12:42,423 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:42,423 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2018-10-27 06:12:42,424 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:12:42,424 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2018-10-27 06:12:42,424 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:12:42,424 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-10-27 06:12:42,425 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:12:42,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:12:42,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:12:42,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:12:42,425 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:42,425 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:42,425 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:12:42,425 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:12:42,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:12:42,429 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:12:42,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:12:42,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:12:42 BoogieIcfgContainer [2018-10-27 06:12:42,434 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:12:42,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:12:42,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:12:42,434 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:12:42,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:12:38" (3/4) ... [2018-10-27 06:12:42,438 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:12:42,438 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:12:42,439 INFO L168 Benchmark]: Toolchain (without parser) took 4186.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 960.7 MB in the beginning and 922.5 MB in the end (delta: 38.2 MB). Peak memory consumption was 214.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:42,439 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-10-27 06:12:42,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:42,440 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.64 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:42,440 INFO L168 Benchmark]: Boogie Preprocessor took 16.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:42,441 INFO L168 Benchmark]: RCFGBuilder took 284.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -217.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:42,443 INFO L168 Benchmark]: BuchiAutomizer took 3697.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 922.5 MB in the end (delta: 242.2 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:12:42,444 INFO L168 Benchmark]: Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 922.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:12:42,446 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 151.75 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.64 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 284.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 176.7 MB). Free memory was 947.3 MB in the beginning and 1.2 GB in the end (delta: -217.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3697.53 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 922.5 MB in the end (delta: 242.2 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. * Witness Printer took 4.04 ms. Allocated memory is still 1.2 GB. Free memory is still 922.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (1 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * M + x and consists of 4 locations. One deterministic module has affine ranking function M + -1 * x and consists of 3 locations. One nondeterministic module has affine ranking function M + -1 * x and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 38 SDtfs, 34 SDslu, 11 SDs, 0 SdLazy, 42 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax196 hnf97 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf94 smp79 dnf100 smp100 tf108 neg96 sie118 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 9ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...