./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/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 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 15:34:46,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 15:34:46,870 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 15:34:46,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 15:34:46,878 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 15:34:46,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 15:34:46,879 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 15:34:46,880 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 15:34:46,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 15:34:46,882 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 15:34:46,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 15:34:46,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 15:34:46,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 15:34:46,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 15:34:46,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 15:34:46,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 15:34:46,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 15:34:46,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 15:34:46,889 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 15:34:46,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 15:34:46,891 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 15:34:46,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 15:34:46,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 15:34:46,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 15:34:46,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 15:34:46,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 15:34:46,895 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 15:34:46,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 15:34:46,896 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 15:34:46,897 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 15:34:46,897 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 15:34:46,898 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 15:34:46,898 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 15:34:46,898 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 15:34:46,899 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 15:34:46,899 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 15:34:46,899 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 15:34:46,910 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 15:34:46,910 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 15:34:46,911 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 15:34:46,911 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 15:34:46,912 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 15:34:46,912 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 15:34:46,913 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 15:34:46,913 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 15:34:46,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 15:34:46,914 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 15:34:46,914 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 15:34:46,915 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 15:34:46,915 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_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/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 -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2018-11-23 15:34:46,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 15:34:46,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 15:34:46,946 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 15:34:46,947 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 15:34:46,947 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 15:34:46,948 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-23 15:34:46,985 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/data/b59c54211/d05f478417674a22841e8053f1a12f3f/FLAGe1e93e20f [2018-11-23 15:34:47,332 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 15:34:47,332 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-23 15:34:47,337 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/data/b59c54211/d05f478417674a22841e8053f1a12f3f/FLAGe1e93e20f [2018-11-23 15:34:47,752 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/data/b59c54211/d05f478417674a22841e8053f1a12f3f [2018-11-23 15:34:47,754 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 15:34:47,755 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 15:34:47,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 15:34:47,756 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 15:34:47,759 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 15:34:47,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,761 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58a31ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47, skipping insertion in model container [2018-11-23 15:34:47,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 15:34:47,781 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 15:34:47,888 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:34:47,890 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 15:34:47,899 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 15:34:47,907 INFO L195 MainTranslator]: Completed translation [2018-11-23 15:34:47,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47 WrapperNode [2018-11-23 15:34:47,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 15:34:47,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 15:34:47,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 15:34:47,908 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 15:34:47,913 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 15:34:47,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 15:34:47,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 15:34:47,927 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 15:34:47,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,937 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,937 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... [2018-11-23 15:34:47,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 15:34:47,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 15:34:47,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 15:34:47,938 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 15:34:47,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 15:34:48,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 15:34:48,094 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 15:34:48,094 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 15:34:48,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:48 BoogieIcfgContainer [2018-11-23 15:34:48,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 15:34:48,095 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 15:34:48,095 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 15:34:48,098 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 15:34:48,099 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:34:48,099 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 03:34:47" (1/3) ... [2018-11-23 15:34:48,100 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77f0d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:34:48, skipping insertion in model container [2018-11-23 15:34:48,100 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:34:48,100 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:34:47" (2/3) ... [2018-11-23 15:34:48,100 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@77f0d699 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 03:34:48, skipping insertion in model container [2018-11-23 15:34:48,100 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 15:34:48,101 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:48" (3/3) ... [2018-11-23 15:34:48,102 INFO L375 chiAutomizerObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-23 15:34:48,148 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 15:34:48,149 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 15:34:48,149 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 15:34:48,149 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 15:34:48,149 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 15:34:48,149 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 15:34:48,150 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 15:34:48,150 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 15:34:48,150 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 15:34:48,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 15:34:48,174 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:48,174 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:34:48,174 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:34:48,179 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 15:34:48,180 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:34:48,180 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 15:34:48,180 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2018-11-23 15:34:48,181 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:48,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:34:48,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:34:48,181 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 15:34:48,181 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:34:48,186 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 5#L18-2true [2018-11-23 15:34:48,187 INFO L796 eck$LassoCheckResult]: Loop: 5#L18-2true assume !!(main_~x~0 != main_~K~0); 7#L18true assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 5#L18-2true [2018-11-23 15:34:48,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,191 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 15:34:48,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,192 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,255 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2018-11-23 15:34:48,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,265 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,265 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2018-11-23 15:34:48,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,266 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,330 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:48,331 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:48,331 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:48,331 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:48,331 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 15:34:48,331 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,331 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:48,331 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:48,332 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 15:34:48,332 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:48,332 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:48,353 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,368 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,431 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:48,431 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,435 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:48,435 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:48,457 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 15:34:48,457 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:48,460 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:48,478 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 15:34:48,478 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,481 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:48,481 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,505 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 15:34:48,505 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:48,657 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 15:34:48,658 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:48,658 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:48,658 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:48,658 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:48,659 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 15:34:48,659 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:48,659 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:48,659 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:48,659 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 15:34:48,659 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:48,659 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:48,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,663 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,665 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:48,722 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:48,726 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 15:34:48,727 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:48,728 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:48,729 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:48,729 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:34:48,729 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:48,733 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 15:34:48,733 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 15:34:48,741 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:34:48,742 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:48,742 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:48,742 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:48,743 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:34:48,743 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:48,745 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 15:34:48,745 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 15:34:48,751 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:34:48,751 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:48,752 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:48,752 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:34:48,753 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:48,753 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:34:48,753 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:48,753 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:34:48,754 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:34:48,759 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 15:34:48,764 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-23 15:34:48,764 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 15:34:48,766 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 15:34:48,767 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 15:34:48,767 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 15:34:48,767 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~K~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 15:34:48,768 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 15:34:48,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:48,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:48,804 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:48,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:48,817 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 [2018-11-23 15:34:48,818 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2018-11-23 15:34:48,856 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 6 states. [2018-11-23 15:34:48,857 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 [2018-11-23 15:34:48,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:48,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-23 15:34:48,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 15:34:48,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:48,862 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 15:34:48,862 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:48,863 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 1 letters. Loop has 4 letters. [2018-11-23 15:34:48,863 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:48,864 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. [2018-11-23 15:34:48,866 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:48,870 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 7 states and 10 transitions. [2018-11-23 15:34:48,872 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 15:34:48,872 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 15:34:48,873 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2018-11-23 15:34:48,873 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 15:34:48,873 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 15:34:48,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2018-11-23 15:34:48,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-23 15:34:48,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-23 15:34:48,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2018-11-23 15:34:48,900 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 15:34:48,900 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2018-11-23 15:34:48,900 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 15:34:48,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2018-11-23 15:34:48,901 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:48,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:34:48,901 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:34:48,901 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-23 15:34:48,901 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:34:48,902 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 69#L18-2 assume !!(main_~x~0 != main_~K~0); 67#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 63#L18-2 [2018-11-23 15:34:48,902 INFO L796 eck$LassoCheckResult]: Loop: 63#L18-2 assume !!(main_~x~0 != main_~K~0); 64#L18 assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 63#L18-2 [2018-11-23 15:34:48,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,902 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2018-11-23 15:34:48,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2018-11-23 15:34:48,911 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,911 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:48,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:48,917 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2018-11-23 15:34:48,917 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:48,918 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:48,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,919 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:34:48,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:48,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:48,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:48,959 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 15:34:48,959 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 15:34:48,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:48,974 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:49,017 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 15:34:49,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-23 15:34:49,037 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:49,037 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:49,037 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:49,037 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:49,037 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 15:34:49,037 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,037 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:49,037 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:49,037 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 15:34:49,038 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:49,038 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:49,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,045 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,087 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:49,087 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,097 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:49,097 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:49,116 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 15:34:49,117 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,120 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:49,120 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 15:34:49,137 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:49,284 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 15:34:49,285 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:49,285 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:49,285 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:49,285 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:49,285 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 15:34:49,285 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,285 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:49,286 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:49,286 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 15:34:49,286 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:49,286 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:49,287 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,289 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,292 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,314 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:49,314 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 15:34:49,315 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:49,315 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:49,316 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:49,316 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:34:49,316 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:49,317 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 15:34:49,317 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 15:34:49,321 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 15:34:49,322 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:49,322 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:49,322 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:34:49,322 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:49,323 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 15:34:49,323 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:49,323 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 15:34:49,323 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:34:49,327 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 15:34:49,331 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 15:34:49,331 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 15:34:49,331 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 15:34:49,331 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 15:34:49,331 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 15:34:49,332 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~K~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 15:34:49,332 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 15:34:49,342 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:49,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:49,353 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:49,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:49,359 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 [2018-11-23 15:34:49,359 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-23 15:34:49,376 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2018-11-23 15:34:49,376 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 15:34:49,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:49,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2018-11-23 15:34:49,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-23 15:34:49,377 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:49,377 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-23 15:34:49,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:49,378 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-23 15:34:49,378 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:49,378 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2018-11-23 15:34:49,379 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:49,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2018-11-23 15:34:49,379 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-11-23 15:34:49,380 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 15:34:49,380 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2018-11-23 15:34:49,380 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 15:34:49,380 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 15:34:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2018-11-23 15:34:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-23 15:34:49,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-23 15:34:49,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2018-11-23 15:34:49,382 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2018-11-23 15:34:49,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:34:49,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:34:49,385 INFO L87 Difference]: Start difference. First operand 11 states and 16 transitions. Second operand 4 states. [2018-11-23 15:34:49,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:34:49,410 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2018-11-23 15:34:49,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 15:34:49,411 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 12 transitions. [2018-11-23 15:34:49,412 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:49,412 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 9 states and 11 transitions. [2018-11-23 15:34:49,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-23 15:34:49,413 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-23 15:34:49,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 11 transitions. [2018-11-23 15:34:49,413 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 15:34:49,413 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-11-23 15:34:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 11 transitions. [2018-11-23 15:34:49,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 6. [2018-11-23 15:34:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 15:34:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 8 transitions. [2018-11-23 15:34:49,414 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 15:34:49,414 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-23 15:34:49,415 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 15:34:49,415 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 8 transitions. [2018-11-23 15:34:49,415 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:49,415 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:34:49,415 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:34:49,416 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 15:34:49,416 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:34:49,416 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 158#L18-2 assume !!(main_~x~0 != main_~K~0); 154#L18 [2018-11-23 15:34:49,416 INFO L796 eck$LassoCheckResult]: Loop: 154#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 153#L18-2 assume !!(main_~x~0 != main_~K~0); 154#L18 [2018-11-23 15:34:49,416 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:49,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 15:34:49,417 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:49,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:49,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:49,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,421 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:49,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2018-11-23 15:34:49,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:49,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:49,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:49,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,428 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:49,429 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 2 times [2018-11-23 15:34:49,429 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:49,429 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:49,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 15:34:49,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:49,457 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:49,457 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:49,457 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:49,457 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:49,458 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 15:34:49,458 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,458 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:49,458 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:49,458 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 15:34:49,458 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:49,458 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:49,459 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,484 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:49,534 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:49,534 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,554 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:49,554 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:49,577 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 15:34:49,577 INFO L448 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_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,586 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:49,587 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:49,606 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 15:34:49,606 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:51,350 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 15:34:51,352 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:51,353 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:51,353 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:51,353 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:51,353 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 15:34:51,353 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:51,353 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:51,353 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:51,354 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 15:34:51,354 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:51,354 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:51,355 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,360 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,362 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,399 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:51,399 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 15:34:51,399 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:51,400 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:51,400 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:34:51,400 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:51,400 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 15:34:51,400 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:51,401 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 15:34:51,401 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:34:51,405 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 15:34:51,409 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 15:34:51,410 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 15:34:51,410 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 15:34:51,410 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 15:34:51,410 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 15:34:51,410 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~K~0) = -2*ULTIMATE.start_main_~x~0 + 2*ULTIMATE.start_main_~K~0 + 1 Supporting invariants [] [2018-11-23 15:34:51,411 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 15:34:51,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:51,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:51,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:51,440 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:51,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:51,461 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 15:34:51,461 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-11-23 15:34:51,468 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 8 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 11 states and 13 transitions. Complement of second has 5 states. [2018-11-23 15:34:51,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 15:34:51,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:51,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-23 15:34:51,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 15:34:51,469 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:51,469 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 15:34:51,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:51,470 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-23 15:34:51,470 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:51,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 13 transitions. [2018-11-23 15:34:51,470 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:51,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-23 15:34:51,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 15:34:51,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 15:34:51,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-23 15:34:51,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 15:34:51,471 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-23 15:34:51,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-23 15:34:51,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2018-11-23 15:34:51,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-11-23 15:34:51,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-11-23 15:34:51,472 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-23 15:34:51,472 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-11-23 15:34:51,472 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 15:34:51,473 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-11-23 15:34:51,473 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 15:34:51,473 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 15:34:51,473 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 15:34:51,473 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1] [2018-11-23 15:34:51,473 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 15:34:51,474 INFO L794 eck$LassoCheckResult]: Stem: 207#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~K~0, main_~x~0;havoc main_~K~0;havoc main_~x~0;main_~K~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~x~0 := main_#t~nondet1;havoc main_#t~nondet1; 203#L18-2 assume !!(main_~x~0 != main_~K~0); 204#L18 assume main_~x~0 > main_~K~0;main_~x~0 := main_~x~0 - 1; 205#L18-2 assume !!(main_~x~0 != main_~K~0); 206#L18 [2018-11-23 15:34:51,474 INFO L796 eck$LassoCheckResult]: Loop: 206#L18 assume !(main_~x~0 > main_~K~0);main_~x~0 := 1 + main_~x~0; 208#L18-2 assume !!(main_~x~0 != main_~K~0); 206#L18 [2018-11-23 15:34:51,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:51,474 INFO L82 PathProgramCache]: Analyzing trace with hash 963335, now seen corresponding path program 2 times [2018-11-23 15:34:51,474 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:51,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:51,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,475 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:34:51,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:51,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:51,479 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:51,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 2 times [2018-11-23 15:34:51,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:51,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:51,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,480 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:34:51,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:51,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 15:34:51,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:51,484 INFO L82 PathProgramCache]: Analyzing trace with hash 925765410, now seen corresponding path program 2 times [2018-11-23 15:34:51,484 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 15:34:51,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 15:34:51,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,485 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 15:34:51,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 15:34:51,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:51,514 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:51,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 15:34:51,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 15:34:51,528 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:51,528 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:51,528 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:51,528 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:51,528 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 15:34:51,528 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:51,528 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:51,528 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:51,528 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 15:34:51,529 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:51,529 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:51,530 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,534 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,536 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:51,585 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:51,585 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:51,588 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 15:34:51,589 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_67801ba6-2a48-4fb8-a6e8-daf1ec2634af/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:51,609 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 15:34:51,609 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 15:34:53,383 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 15:34:53,385 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 15:34:53,385 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 15:34:53,385 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 15:34:53,385 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 15:34:53,385 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 15:34:53,385 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 15:34:53,385 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 15:34:53,386 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 15:34:53,386 INFO L131 ssoRankerPreferences]: Filename of dumped script: CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-23 15:34:53,386 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 15:34:53,386 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 15:34:53,386 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:53,392 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:53,393 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 15:34:53,443 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 15:34:53,444 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 15:34:53,444 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 15:34:53,444 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 15:34:53,445 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 15:34:53,445 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 15:34:53,445 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2018-11-23 15:34:53,445 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 15:34:53,446 INFO L402 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2018-11-23 15:34:53,446 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 15:34:53,450 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 15:34:53,453 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 15:34:53,453 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-23 15:34:53,453 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 15:34:53,453 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 15:34:53,454 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 15:34:53,454 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~K~0, ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~K~0 - 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-23 15:34:53,454 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 15:34:53,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,480 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:53,502 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 15:34:53,502 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 15:34:53,505 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 7 states and 8 transitions. Complement of second has 3 states. [2018-11-23 15:34:53,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 15:34:53,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-23 15:34:53,505 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 15:34:53,506 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:53,506 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 15:34:53,514 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:53,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,520 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:53,529 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 15:34:53,530 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 15:34:53,533 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 7 states and 8 transitions. Complement of second has 3 states. [2018-11-23 15:34:53,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-23 15:34:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:53,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2 transitions. [2018-11-23 15:34:53,534 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 2 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 15:34:53,534 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:53,535 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-23 15:34:53,545 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 15:34:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 15:34:53,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 15:34:53,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 15:34:53,560 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 15:34:53,560 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2018-11-23 15:34:53,568 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 8 states and 9 transitions. Complement of second has 4 states. [2018-11-23 15:34:53,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 15:34:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 15:34:53,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-23 15:34:53,570 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 15:34:53,570 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:53,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 15:34:53,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:53,571 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-23 15:34:53,571 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 15:34:53,571 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-11-23 15:34:53,572 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 15:34:53,572 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2018-11-23 15:34:53,572 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 15:34:53,572 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 15:34:53,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 15:34:53,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 15:34:53,572 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:34:53,572 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:34:53,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 15:34:53,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 15:34:53,573 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-23 15:34:53,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 15:34:53,573 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-23 15:34:53,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 15:34:53,573 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-23 15:34:53,573 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 15:34:53,573 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 15:34:53,573 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 15:34:53,573 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 15:34:53,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 15:34:53,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 15:34:53,574 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:34:53,574 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:34:53,574 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 15:34:53,574 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-23 15:34:53,574 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 15:34:53,574 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 15:34:53,574 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 15:34:53,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 03:34:53 BoogieIcfgContainer [2018-11-23 15:34:53,579 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 15:34:53,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 15:34:53,580 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 15:34:53,580 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 15:34:53,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:34:48" (3/4) ... [2018-11-23 15:34:53,583 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 15:34:53,583 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 15:34:53,584 INFO L168 Benchmark]: Toolchain (without parser) took 5829.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 959.2 MB in the beginning and 884.6 MB in the end (delta: 74.6 MB). Peak memory consumption was 212.0 MB. Max. memory is 11.5 GB. [2018-11-23 15:34:53,585 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:34:53,585 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.64 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:34:53,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.82 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 15:34:53,586 INFO L168 Benchmark]: Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:34:53,586 INFO L168 Benchmark]: RCFGBuilder took 156.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-23 15:34:53,587 INFO L168 Benchmark]: BuchiAutomizer took 5484.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.6 MB in the end (delta: 242.2 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. [2018-11-23 15:34:53,587 INFO L168 Benchmark]: Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory is still 884.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 15:34:53,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.64 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.82 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 945.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 156.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5484.51 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 884.6 MB in the end (delta: 242.2 MB). Peak memory consumption was 242.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.81 ms. Allocated memory is still 1.2 GB. Free memory is still 884.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * K + x and consists of 4 locations. One deterministic module has affine ranking function -1 * K + x and consists of 3 locations. One deterministic module has affine ranking function -2 * x + 2 * K + 1 and consists of 3 locations. One nondeterministic module has affine ranking function 2 * K + -2 * x + 1 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 5.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 20 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf98 lsp49 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq165 hnf94 smp100 dnf132 smp89 tf110 neg96 sie112 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 14ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 4.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...