./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 500cb8735f650eb0e7c33062ddc23c2166b17f19 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:11:00,852 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:11:00,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:11:00,865 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:11:00,866 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:11:00,868 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:11:00,870 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:11:00,871 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:11:00,873 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:11:00,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:11:00,877 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:11:00,878 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:11:00,879 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:11:00,881 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:11:00,887 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:11:00,888 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:11:00,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:11:00,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:11:00,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:11:00,894 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:11:00,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:11:00,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:11:00,897 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:11:00,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:11:00,898 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:11:00,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:11:00,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:11:00,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:11:00,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:11:00,900 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:11:00,900 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:11:00,901 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:11:00,901 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:11:00,901 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:11:00,902 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:11:00,902 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:11:00,903 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:11:00,915 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:11:00,915 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:11:00,916 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:11:00,916 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:11:00,916 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:11:00,917 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:11:00,917 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:11:00,917 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:11:00,918 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:11:00,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:11:00,919 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:11:00,919 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:11:00,922 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:11:00,922 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:11:00,922 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:11:00,923 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:11:00,923 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_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 -> 500cb8735f650eb0e7c33062ddc23c2166b17f19 [2018-10-27 06:11:00,953 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:11:00,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:11:00,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:11:00,968 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:11:00,969 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:11:00,970 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-10-27 06:11:01,013 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/data/62946d9ed/f8a920b1eeca40568c75375f98b09900/FLAG6e3726589 [2018-10-27 06:11:01,403 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:11:01,403 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-10-27 06:11:01,408 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/data/62946d9ed/f8a920b1eeca40568c75375f98b09900/FLAG6e3726589 [2018-10-27 06:11:01,420 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/data/62946d9ed/f8a920b1eeca40568c75375f98b09900 [2018-10-27 06:11:01,423 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:11:01,424 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:11:01,424 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:01,424 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:11:01,428 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:11:01,429 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,432 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb7a7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01, skipping insertion in model container [2018-10-27 06:11:01,432 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,442 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:11:01,458 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:11:01,576 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:01,579 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:11:01,592 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:01,604 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:11:01,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01 WrapperNode [2018-10-27 06:11:01,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:01,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:01,605 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:11:01,605 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:11:01,612 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:01,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:11:01,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:11:01,634 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:11:01,643 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,650 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... [2018-10-27 06:11:01,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:11:01,652 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:11:01,652 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:11:01,652 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:11:01,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:01,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:11:01,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:11:02,073 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:11:02,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:02 BoogieIcfgContainer [2018-10-27 06:11:02,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:11:02,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:11:02,074 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:11:02,077 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:11:02,077 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:02,077 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:11:01" (1/3) ... [2018-10-27 06:11:02,078 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c5f8f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:02, skipping insertion in model container [2018-10-27 06:11:02,078 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:02,078 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:01" (2/3) ... [2018-10-27 06:11:02,079 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1c5f8f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:02, skipping insertion in model container [2018-10-27 06:11:02,079 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:02,079 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:02" (3/3) ... [2018-10-27 06:11:02,082 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c [2018-10-27 06:11:02,133 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:11:02,133 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:11:02,133 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:11:02,133 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:11:02,134 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:11:02,134 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:11:02,134 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:11:02,134 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:11:02,134 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:11:02,147 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:11:02,167 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:02,167 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:02,167 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:02,174 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:11:02,174 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:02,174 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:11:02,174 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:11:02,176 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:02,176 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:02,176 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:02,176 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:11:02,176 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:02,184 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 10#L21-2true [2018-10-27 06:11:02,184 INFO L795 eck$LassoCheckResult]: Loop: 10#L21-2true assume true; 11#L20-1true assume !!(main_~i~0 < main_~n~0); 4#L21true assume main_~j~0 < main_~m~0;main_~j~0 := main_~j~0 + 1; 10#L21-2true [2018-10-27 06:11:02,190 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:02,191 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-10-27 06:11:02,193 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:02,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:02,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:02,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:02,280 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-10-27 06:11:02,280 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:02,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:02,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:02,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:02,290 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-10-27 06:11:02,290 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:02,291 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:02,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:02,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:02,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:02,387 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:02,388 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:02,389 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:02,389 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:02,389 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:11:02,389 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:02,389 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:02,389 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:02,389 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-10-27 06:11:02,390 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:02,390 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:02,405 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,425 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,519 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:02,520 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 [2018-10-27 06:11:02,526 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:02,526 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:02,546 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:02,546 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:02,549 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:02,549 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:02,582 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:02,582 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 [2018-10-27 06:11:02,585 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:02,585 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:02,603 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:02,604 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~n~0=1, ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:02,610 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:02,610 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:02,632 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:11:02,632 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:02,781 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:11:02,782 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:02,782 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:02,782 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:02,782 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:02,782 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:11:02,782 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:02,782 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:02,782 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:02,783 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration1_Loop [2018-10-27 06:11:02,783 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:02,783 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:02,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,796 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,802 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:02,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,069 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:03,073 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:11:03,074 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:03,075 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:03,076 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:03,076 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:03,076 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:03,080 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:11:03,080 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:11:03,086 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:03,087 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:03,087 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:03,087 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:03,088 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:03,088 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:03,088 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:03,089 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:03,089 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:03,091 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:03,091 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:03,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:03,092 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:03,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:03,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:03,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:03,093 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:03,093 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:03,098 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:11:03,102 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:11:03,102 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:11:03,104 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:11:03,104 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:11:03,105 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:11:03,105 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-10-27 06:11:03,106 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:11:03,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:03,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:03,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:03,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:03,243 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:11:03,244 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-10-27 06:11:03,293 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 32 states and 37 transitions. Complement of second has 6 states. [2018-10-27 06:11:03,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:03,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:11:03,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-10-27 06:11:03,298 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-10-27 06:11:03,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:03,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-10-27 06:11:03,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:03,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-10-27 06:11:03,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:03,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-10-27 06:11:03,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:03,307 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-10-27 06:11:03,308 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-10-27 06:11:03,309 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-10-27 06:11:03,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-10-27 06:11:03,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:11:03,309 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:11:03,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-10-27 06:11:03,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-10-27 06:11:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-27 06:11:03,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-10-27 06:11:03,330 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:11:03,330 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-10-27 06:11:03,330 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:11:03,330 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-10-27 06:11:03,331 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:03,331 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:03,331 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:03,331 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-10-27 06:11:03,331 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:03,332 INFO L793 eck$LassoCheckResult]: Stem: 90#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 91#L21-2 assume true; 94#L20-1 assume !!(main_~i~0 < main_~n~0); 86#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := main_~i~0 + 1; 87#L21-2 [2018-10-27 06:11:03,332 INFO L795 eck$LassoCheckResult]: Loop: 87#L21-2 assume true; 92#L20-1 assume !!(main_~i~0 < main_~n~0); 95#L21 assume main_~j~0 < main_~m~0;main_~j~0 := main_~j~0 + 1; 87#L21-2 [2018-10-27 06:11:03,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:03,332 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-10-27 06:11:03,332 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:03,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:03,333 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:03,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:03,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:03,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:03,388 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:11:03,388 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:11:03,390 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:11:03,390 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:03,390 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-10-27 06:11:03,391 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:03,391 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:03,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:03,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:03,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:03,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:03,520 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:03,520 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:03,520 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:03,520 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:03,521 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:11:03,521 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:03,521 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:03,521 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:03,521 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:11:03,521 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:03,521 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:03,523 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,526 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,531 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,537 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,574 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:03,574 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 [2018-10-27 06:11:03,576 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:03,576 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:03,593 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:03,593 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:03,597 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:03,597 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:03,613 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:03,614 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/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 [2018-10-27 06:11:03,622 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:03,622 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:03,649 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:11:03,649 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:03,796 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:11:03,798 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:03,798 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:03,798 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:03,798 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:03,798 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:11:03,798 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:03,798 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:03,799 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:03,799 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration2_Loop [2018-10-27 06:11:03,799 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:03,799 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:03,800 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,811 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:03,821 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,001 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:04,001 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:11:04,002 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:04,002 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:04,003 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:04,003 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:04,003 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:04,004 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:11:04,005 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:11:04,017 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:04,019 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:04,019 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:04,019 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:04,019 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:04,020 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:04,021 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:11:04,021 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:11:04,030 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:04,035 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:04,036 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:04,037 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:04,037 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:04,037 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:04,037 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:04,038 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:04,038 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:04,042 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:11:04,052 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:11:04,055 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:11:04,055 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:11:04,056 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:11:04,056 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:11:04,056 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~m~0, ULTIMATE.start_main_~j~0) = 1*ULTIMATE.start_main_~m~0 - 1*ULTIMATE.start_main_~j~0 Supporting invariants [] [2018-10-27 06:11:04,057 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:11:04,239 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,245 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,250 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:04,251 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:11:04,251 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-10-27 06:11:04,262 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 18 states and 23 transitions. Complement of second has 5 states. [2018-10-27 06:11:04,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:11:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-10-27 06:11:04,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2018-10-27 06:11:04,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2018-10-27 06:11:04,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,264 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2018-10-27 06:11:04,264 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,265 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-10-27 06:11:04,265 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:04,265 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-10-27 06:11:04,266 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-10-27 06:11:04,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-10-27 06:11:04,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-10-27 06:11:04,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:11:04,266 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-10-27 06:11:04,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-10-27 06:11:04,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-10-27 06:11:04,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 06:11:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-10-27 06:11:04,268 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-10-27 06:11:04,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:11:04,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:11:04,271 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 3 states. [2018-10-27 06:11:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:11:04,281 INFO L93 Difference]: Finished difference Result 22 states and 26 transitions. [2018-10-27 06:11:04,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:11:04,282 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 26 transitions. [2018-10-27 06:11:04,283 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:04,283 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 20 states and 24 transitions. [2018-10-27 06:11:04,284 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-10-27 06:11:04,284 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-10-27 06:11:04,284 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 24 transitions. [2018-10-27 06:11:04,284 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:11:04,284 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-10-27 06:11:04,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 24 transitions. [2018-10-27 06:11:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2018-10-27 06:11:04,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-10-27 06:11:04,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2018-10-27 06:11:04,286 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-10-27 06:11:04,286 INFO L608 BuchiCegarLoop]: Abstraction has 18 states and 22 transitions. [2018-10-27 06:11:04,286 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:11:04,286 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 18 states and 22 transitions. [2018-10-27 06:11:04,287 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:04,287 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:04,287 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:04,288 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [3, 3, 2, 1, 1, 1, 1] [2018-10-27 06:11:04,288 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:04,288 INFO L793 eck$LassoCheckResult]: Stem: 206#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 200#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 201#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 207#L21-2 assume true; 209#L20-1 assume !!(main_~i~0 < main_~n~0); 210#L21 assume main_~j~0 < main_~m~0;main_~j~0 := main_~j~0 + 1; 217#L21-2 assume true; 216#L20-1 assume !!(main_~i~0 < main_~n~0); 215#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := main_~i~0 + 1; 212#L21-2 assume true; 208#L20-1 assume !!(main_~i~0 < main_~n~0); 202#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := main_~i~0 + 1; 203#L21-2 [2018-10-27 06:11:04,288 INFO L795 eck$LassoCheckResult]: Loop: 203#L21-2 assume true; 214#L20-1 assume !!(main_~i~0 < main_~n~0); 213#L21 assume main_~j~0 < main_~m~0;main_~j~0 := main_~j~0 + 1; 203#L21-2 [2018-10-27 06:11:04,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,288 INFO L82 PathProgramCache]: Analyzing trace with hash -222458486, now seen corresponding path program 1 times [2018-10-27 06:11:04,288 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:04,289 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:04,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:04,290 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:11:04,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:04,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 06:11:04,344 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:11:04,344 INFO L225 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:11:04,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:04,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,413 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-10-27 06:11:04,434 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:11:04,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2018-10-27 06:11:04,435 INFO L798 eck$LassoCheckResult]: stem already infeasible [2018-10-27 06:11:04,435 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,435 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 3 times [2018-10-27 06:11:04,435 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:04,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:04,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:04,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:04,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:04,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:04,487 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:04,487 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:04,487 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:04,487 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:04,487 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:11:04,487 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:04,488 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:04,488 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:04,488 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:11:04,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:04,488 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:04,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,494 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,496 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,499 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,524 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:04,525 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:04,528 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:04,528 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:04,570 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:11:04,571 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:04,710 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:11:04,711 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:04,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:04,712 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:04,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:04,712 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:11:04,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:04,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:04,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:04,712 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:11:04,712 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:04,712 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:04,713 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,728 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:04,784 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:04,785 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:11:04,785 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:04,785 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:04,786 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:04,786 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:04,786 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:04,786 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:04,787 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:04,787 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:04,790 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:11:04,796 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:11:04,797 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:11:04,797 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:11:04,797 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:11:04,797 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:11:04,797 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~j~0, ULTIMATE.start_main_~m~0) = -1*ULTIMATE.start_main_~j~0 + 1*ULTIMATE.start_main_~m~0 Supporting invariants [] [2018-10-27 06:11:04,798 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:11:04,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,843 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,847 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:04,848 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:11:04,848 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-10-27 06:11:04,858 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 28 transitions. Complement of second has 5 states. [2018-10-27 06:11:04,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:04,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:11:04,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-10-27 06:11:04,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2018-10-27 06:11:04,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,861 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:11:04,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,886 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:04,892 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-10-27 06:11:04,892 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-10-27 06:11:04,899 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 22 states and 28 transitions. Complement of second has 5 states. [2018-10-27 06:11:04,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:04,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:11:04,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-10-27 06:11:04,900 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 12 letters. Loop has 3 letters. [2018-10-27 06:11:04,900 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,900 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-10-27 06:11:04,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:04,969 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:04,969 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 1 loop predicates [2018-10-27 06:11:04,971 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7 Second operand 3 states. [2018-10-27 06:11:04,989 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 18 states and 22 transitions. cyclomatic complexity: 7. Second operand 3 states. Result 25 states and 32 transitions. Complement of second has 4 states. [2018-10-27 06:11:04,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:04,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:11:04,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2018-10-27 06:11:04,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 3 letters. [2018-10-27 06:11:04,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 15 letters. Loop has 3 letters. [2018-10-27 06:11:04,991 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 12 letters. Loop has 6 letters. [2018-10-27 06:11:04,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:04,992 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 25 states and 32 transitions. [2018-10-27 06:11:04,993 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:11:04,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 25 states to 21 states and 26 transitions. [2018-10-27 06:11:04,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-10-27 06:11:04,994 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-10-27 06:11:04,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 26 transitions. [2018-10-27 06:11:04,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:11:04,994 INFO L705 BuchiCegarLoop]: Abstraction has 21 states and 26 transitions. [2018-10-27 06:11:04,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 26 transitions. [2018-10-27 06:11:04,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 10. [2018-10-27 06:11:04,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-10-27 06:11:05,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-10-27 06:11:05,000 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-10-27 06:11:05,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 06:11:05,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-10-27 06:11:05,000 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 5 states. [2018-10-27 06:11:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:11:05,017 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-10-27 06:11:05,017 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:11:05,018 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2018-10-27 06:11:05,018 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2018-10-27 06:11:05,018 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2018-10-27 06:11:05,019 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-10-27 06:11:05,019 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-10-27 06:11:05,019 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-10-27 06:11:05,019 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:11:05,019 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-10-27 06:11:05,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-10-27 06:11:05,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 9. [2018-10-27 06:11:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-10-27 06:11:05,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2018-10-27 06:11:05,020 INFO L728 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-27 06:11:05,020 INFO L608 BuchiCegarLoop]: Abstraction has 9 states and 10 transitions. [2018-10-27 06:11:05,020 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:11:05,020 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states and 10 transitions. [2018-10-27 06:11:05,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:11:05,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:05,021 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:05,021 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:11:05,021 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 2, 1, 1] [2018-10-27 06:11:05,021 INFO L793 eck$LassoCheckResult]: Stem: 515#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 509#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~i~0, main_~j~0, main_~m~0, main_~n~0;havoc main_~i~0;havoc main_~j~0;havoc main_~m~0;havoc main_~n~0;main_~n~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~m~0 := main_#t~nondet1;havoc main_#t~nondet1; 510#L17 assume main_~m~0 > 0 && main_~n~0 > main_~m~0;main_~i~0 := 0;main_~j~0 := 0; 512#L21-2 [2018-10-27 06:11:05,022 INFO L795 eck$LassoCheckResult]: Loop: 512#L21-2 assume true; 516#L20-1 assume !!(main_~i~0 < main_~n~0); 513#L21 assume main_~j~0 < main_~m~0;main_~j~0 := main_~j~0 + 1; 514#L21-2 assume true; 517#L20-1 assume !!(main_~i~0 < main_~n~0); 511#L21 assume !(main_~j~0 < main_~m~0);main_~j~0 := 0;main_~i~0 := main_~i~0 + 1; 512#L21-2 [2018-10-27 06:11:05,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 2 times [2018-10-27 06:11:05,022 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:05,022 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:05,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,026 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:11:05,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,029 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:05,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1159564227, now seen corresponding path program 1 times [2018-10-27 06:11:05,029 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:05,029 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:05,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,030 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:11:05,030 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:05,038 INFO L82 PathProgramCache]: Analyzing trace with hash -591248476, now seen corresponding path program 2 times [2018-10-27 06:11:05,038 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:05,038 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:05,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:05,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:05,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:05,085 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:05,085 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:05,085 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:05,085 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:05,085 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:11:05,085 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:05,085 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:05,086 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:05,086 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:11:05,086 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:05,086 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:05,087 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,098 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,108 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,215 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:05,215 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:05,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:05,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:05,220 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:05,220 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=1} Honda state: {ULTIMATE.start_main_~j~0=0, ULTIMATE.start_main_~m~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:05,240 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:05,240 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9aea073a-d219-4115-8646-f7d16cb1b8e4/bin-2019/uautomizer/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:05,261 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:11:05,261 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:05,441 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:11:05,442 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:05,442 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:05,442 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:05,443 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:05,443 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:11:05,443 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:05,443 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:05,443 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:05,443 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-speedpldi3_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:11:05,443 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:05,443 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:05,444 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,461 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:05,507 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:05,507 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:11:05,508 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:05,508 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:05,508 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:05,508 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:05,509 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:05,509 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:05,509 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:05,509 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:05,512 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:05,512 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:11:05,512 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:05,513 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:05,513 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:05,513 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:05,513 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:05,513 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:05,513 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:05,516 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:11:05,519 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:11:05,519 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:11:05,519 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:11:05,519 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:11:05,520 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:11:05,520 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-10-27 06:11:05,520 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:11:05,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:05,552 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:05,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:05,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:05,563 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-10-27 06:11:05,564 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-10-27 06:11:05,564 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-10-27 06:11:05,580 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states and 10 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 17 states and 20 transitions. Complement of second has 6 states. [2018-10-27 06:11:05,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:11:05,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:11:05,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-10-27 06:11:05,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 6 letters. [2018-10-27 06:11:05,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:05,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 9 letters. Loop has 6 letters. [2018-10-27 06:11:05,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:05,581 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 3 letters. Loop has 12 letters. [2018-10-27 06:11:05,581 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:05,582 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 20 transitions. [2018-10-27 06:11:05,582 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:11:05,582 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 0 states and 0 transitions. [2018-10-27 06:11:05,582 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:11:05,582 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:11:05,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:11:05,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:11:05,583 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:05,583 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:05,583 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:05,583 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:11:05,583 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:11:05,583 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:11:05,583 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:11:05,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:11:05 BoogieIcfgContainer [2018-10-27 06:11:05,589 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:11:05,589 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:11:05,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:11:05,589 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:11:05,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:02" (3/4) ... [2018-10-27 06:11:05,593 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:11:05,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:11:05,593 INFO L168 Benchmark]: Toolchain (without parser) took 4170.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 959.7 MB in the beginning and 933.1 MB in the end (delta: 26.6 MB). Peak memory consumption was 233.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:05,595 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:05,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:05,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.98 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:05,596 INFO L168 Benchmark]: Boogie Preprocessor took 17.60 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:05,596 INFO L168 Benchmark]: RCFGBuilder took 421.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -248.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:05,597 INFO L168 Benchmark]: BuchiAutomizer took 3514.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 933.1 MB in the end (delta: 261.6 MB). Peak memory consumption was 261.6 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:05,597 INFO L168 Benchmark]: Witness Printer took 3.70 ms. Allocated memory is still 1.2 GB. Free memory is still 933.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:05,600 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.33 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 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 28.98 ms. Allocated memory is still 1.0 GB. Free memory is still 948.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.60 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 421.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 206.6 MB). Free memory was 946.2 MB in the beginning and 1.2 GB in the end (delta: -248.4 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3514.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 933.1 MB in the end (delta: 261.6 MB). Peak memory consumption was 261.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.70 ms. Allocated memory is still 1.2 GB. Free memory is still 933.1 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 m + -1 * j and consists of 4 locations. One deterministic module has affine ranking function m + -1 * j and consists of 3 locations. One deterministic module has affine ranking function n + -1 * i and consists of 4 locations. One nondeterministic module has affine ranking function -1 * j + m and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 5 iterations. TraceHistogramMax:3. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 5. Automata minimization 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 3 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 18 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 3/3 HoareTripleCheckerStatistics: 66 SDtfs, 53 SDslu, 26 SDs, 0 SdLazy, 35 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT2 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax183 hnf100 lsp39 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq152 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...