./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/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 4c761fb15c9d367876fc9f1553874e9680fa1668 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:29:09,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:29:09,953 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:29:09,962 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:29:09,962 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:29:09,963 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:29:09,964 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:29:09,965 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:29:09,966 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:29:09,967 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:29:09,968 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:29:09,968 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:29:09,969 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:29:09,969 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:29:09,970 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:29:09,971 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:29:09,971 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:29:09,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:29:09,974 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:29:09,975 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:29:09,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:29:09,976 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:29:09,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:29:09,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:29:09,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:29:09,979 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:29:09,980 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:29:09,980 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:29:09,981 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:29:09,982 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:29:09,982 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:29:09,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:29:09,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:29:09,983 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:29:09,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:29:09,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:29:09,984 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 13:29:09,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:29:09,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:29:09,996 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:29:09,996 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:29:09,997 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 13:29:09,997 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 13:29:09,997 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 13:29:09,997 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 13:29:09,997 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 13:29:09,997 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 13:29:09,998 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 13:29:09,998 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 13:29:09,999 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 13:29:09,999 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:29:09,999 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 13:29:09,999 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:29:09,999 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 13:29:09,999 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:29:10,000 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:29:10,000 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 13:29:10,000 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:29:10,000 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 13:29:10,000 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 13:29:10,001 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 13:29:10,001 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_2d9db618-12ab-4123-a2f1-dea07bf76b10/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 -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2018-11-18 13:29:10,025 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:29:10,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:29:10,036 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:29:10,038 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:29:10,038 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:29:10,038 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-18 13:29:10,085 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/data/67ea22878/e3fbfc32afeb43b6b7d8bd729882ab43/FLAG0624166dd [2018-11-18 13:29:10,416 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:29:10,416 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-18 13:29:10,421 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/data/67ea22878/e3fbfc32afeb43b6b7d8bd729882ab43/FLAG0624166dd [2018-11-18 13:29:10,847 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/data/67ea22878/e3fbfc32afeb43b6b7d8bd729882ab43 [2018-11-18 13:29:10,849 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:29:10,850 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:29:10,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:10,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:29:10,853 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:29:10,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:10" (1/1) ... [2018-11-18 13:29:10,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44e8c74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:10, skipping insertion in model container [2018-11-18 13:29:10,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:29:10" (1/1) ... [2018-11-18 13:29:10,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:29:10,873 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:29:10,979 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:10,981 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:29:10,990 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:29:11,000 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:29:11,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11 WrapperNode [2018-11-18 13:29:11,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:29:11,001 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:11,001 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:29:11,001 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:29:11,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:29:11,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:29:11,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:29:11,020 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:29:11,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,030 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... [2018-11-18 13:29:11,031 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:29:11,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:29:11,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:29:11,031 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:29:11,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:29:11,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:29:11,187 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:29:11,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:11 BoogieIcfgContainer [2018-11-18 13:29:11,187 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:29:11,188 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 13:29:11,188 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 13:29:11,190 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 13:29:11,191 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:29:11,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 01:29:10" (1/3) ... [2018-11-18 13:29:11,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c65c2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:29:11, skipping insertion in model container [2018-11-18 13:29:11,192 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:29:11,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:29:11" (2/3) ... [2018-11-18 13:29:11,192 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3c65c2c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 01:29:11, skipping insertion in model container [2018-11-18 13:29:11,192 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 13:29:11,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:11" (3/3) ... [2018-11-18 13:29:11,194 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-18 13:29:11,228 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:29:11,228 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 13:29:11,229 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 13:29:11,229 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 13:29:11,229 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:29:11,229 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:29:11,229 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 13:29:11,229 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:29:11,229 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 13:29:11,239 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 13:29:11,252 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:11,252 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:29:11,253 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:29:11,257 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 13:29:11,257 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:29:11,257 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 13:29:11,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-18 13:29:11,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:11,258 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:29:11,258 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:29:11,259 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 13:29:11,259 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:29:11,264 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 8#L19-2true [2018-11-18 13:29:11,264 INFO L796 eck$LassoCheckResult]: Loop: 8#L19-2true assume true; 9#L18-1true assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 11#L19true assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 8#L19-2true [2018-11-18 13:29:11,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,268 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-18 13:29:11,269 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,270 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:11,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,338 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-11-18 13:29:11,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:11,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,348 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-18 13:29:11,348 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,348 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,349 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:11,350 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,408 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:11,409 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:11,409 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:11,409 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:11,409 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:29:11,409 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,409 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:11,409 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:11,410 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 13:29:11,410 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:11,410 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:11,430 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,454 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,508 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:11,509 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,513 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:11,514 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:11,533 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:29:11,533 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,542 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:11,542 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:11,558 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:29:11,558 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,562 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:11,562 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,580 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:29:11,580 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:11,720 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:29:11,721 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:11,721 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:11,721 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:11,721 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:11,721 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:29:11,721 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:11,721 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:11,721 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:11,721 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 13:29:11,721 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:11,722 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:11,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,725 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,731 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:11,794 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:11,797 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:29:11,798 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:11,799 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:11,799 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:11,800 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:11,800 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:11,803 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:29:11,804 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:29:11,809 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:29:11,810 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:11,810 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:11,811 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:29:11,811 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:11,811 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:11,811 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:11,812 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:29:11,812 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:29:11,816 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:29:11,824 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:29:11,824 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:29:11,826 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:29:11,826 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:29:11,826 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:29:11,826 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 13:29:11,827 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:29:11,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:11,875 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:11,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:11,884 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:11,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:11,895 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:29:11,895 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-18 13:29:11,932 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. [2018-11-18 13:29:11,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:11,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:29:11,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-18 13:29:11,936 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-18 13:29:11,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:11,937 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 13:29:11,937 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:11,938 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-18 13:29:11,938 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:11,938 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-11-18 13:29:11,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:11,943 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-11-18 13:29:11,944 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-18 13:29:11,944 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-18 13:29:11,944 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-18 13:29:11,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:29:11,945 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:29:11,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-18 13:29:11,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 13:29:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 13:29:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-18 13:29:11,964 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:29:11,965 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-18 13:29:11,965 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 13:29:11,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-18 13:29:11,965 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:11,966 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:29:11,966 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:29:11,966 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 13:29:11,966 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:29:11,966 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 94#L19-2 assume true; 91#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 95#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 87#L19-2 [2018-11-18 13:29:11,967 INFO L796 eck$LassoCheckResult]: Loop: 87#L19-2 assume true; 88#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 92#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 87#L19-2 [2018-11-18 13:29:11,967 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,967 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-11-18 13:29:11,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:11,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,976 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,976 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-11-18 13:29:11,976 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,977 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:11,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:11,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:11,981 INFO L82 PathProgramCache]: Analyzing trace with hash -591188896, now seen corresponding path program 1 times [2018-11-18 13:29:11,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:11,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:11,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,983 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:29:11,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:11,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:12,020 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:29:12,021 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 13:29:12,036 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,036 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,036 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,036 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,036 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:29:12,036 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,037 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,037 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,037 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 13:29:12,037 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,037 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,038 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,075 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,075 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,087 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,087 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,113 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:29:12,113 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,116 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,116 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,133 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:29:12,133 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,135 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,135 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,153 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:29:12,153 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,256 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:29:12,257 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,257 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,257 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,257 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,257 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:29:12,257 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,257 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,257 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,258 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 13:29:12,258 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,258 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,259 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,261 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,263 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,297 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,297 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:29:12,297 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:12,298 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:12,298 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:12,298 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:12,298 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:12,299 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:29:12,299 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:29:12,303 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:29:12,303 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:12,303 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:12,304 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:12,304 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:12,304 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:12,305 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 13:29:12,305 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 13:29:12,311 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 13:29:12,312 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:12,312 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:12,312 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:29:12,313 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:12,313 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:12,313 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:12,313 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:29:12,313 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:29:12,317 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:29:12,320 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 13:29:12,320 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:29:12,320 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:29:12,320 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:29:12,321 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:29:12,321 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~x~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 13:29:12,321 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:29:12,332 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,339 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:12,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:12,344 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 13:29:12,344 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-18 13:29:12,354 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. [2018-11-18 13:29:12,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 13:29:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-18 13:29:12,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-18 13:29:12,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-18 13:29:12,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-18 13:29:12,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,357 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-11-18 13:29:12,358 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:12,358 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-11-18 13:29:12,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-18 13:29:12,359 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 13:29:12,359 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-18 13:29:12,359 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:29:12,359 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 13:29:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-18 13:29:12,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 13:29:12,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 13:29:12,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-18 13:29:12,364 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-18 13:29:12,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:29:12,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:29:12,366 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2018-11-18 13:29:12,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:29:12,379 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-18 13:29:12,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 13:29:12,380 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2018-11-18 13:29:12,380 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:12,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 17 transitions. [2018-11-18 13:29:12,381 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-18 13:29:12,381 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-18 13:29:12,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2018-11-18 13:29:12,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:29:12,381 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-18 13:29:12,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2018-11-18 13:29:12,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2018-11-18 13:29:12,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 13:29:12,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-11-18 13:29:12,382 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-18 13:29:12,382 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-18 13:29:12,382 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 13:29:12,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2018-11-18 13:29:12,383 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:12,383 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:29:12,383 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:29:12,383 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 13:29:12,383 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:29:12,384 INFO L794 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 199#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 200#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 208#L19-2 assume true; 202#L18-1 [2018-11-18 13:29:12,384 INFO L796 eck$LassoCheckResult]: Loop: 202#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 203#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 206#L19-2 assume true; 202#L18-1 [2018-11-18 13:29:12,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,384 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2018-11-18 13:29:12,384 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:12,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,388 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 1 times [2018-11-18 13:29:12,388 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,388 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:12,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969405, now seen corresponding path program 2 times [2018-11-18 13:29:12,393 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,393 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,394 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:29:12,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,415 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,415 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,415 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,415 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,415 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:29:12,416 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,416 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,416 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,416 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 13:29:12,416 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,416 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,422 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,424 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,457 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,457 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,460 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,460 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:29:12,480 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,588 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:29:12,589 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,590 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,590 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,590 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,590 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:29:12,590 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,590 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,590 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,590 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 13:29:12,590 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,591 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,594 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,627 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,628 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:29:12,628 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:12,629 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:12,629 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:29:12,629 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:12,629 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:12,629 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:12,630 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:29:12,630 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:29:12,633 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:29:12,637 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:29:12,637 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:29:12,637 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:29:12,638 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:29:12,638 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:29:12,638 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 13:29:12,638 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:29:12,651 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,654 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:12,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:12,671 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 13:29:12,672 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-18 13:29:12,680 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 20 states and 22 transitions. Complement of second has 5 states. [2018-11-18 13:29:12,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:12,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:29:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-18 13:29:12,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-18 13:29:12,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 13:29:12,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,683 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-18 13:29:12,683 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:12,684 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-11-18 13:29:12,685 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:12,685 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 12 states and 13 transitions. [2018-11-18 13:29:12,685 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 13:29:12,685 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 13:29:12,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-11-18 13:29:12,686 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 13:29:12,686 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-18 13:29:12,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-11-18 13:29:12,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-11-18 13:29:12,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-18 13:29:12,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-11-18 13:29:12,687 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-18 13:29:12,687 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-18 13:29:12,687 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 13:29:12,688 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2018-11-18 13:29:12,688 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 13:29:12,688 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 13:29:12,688 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 13:29:12,688 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-11-18 13:29:12,689 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 13:29:12,689 INFO L794 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 270#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 271#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 273#L19-2 assume true; 274#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 278#L19 assume main_~x~0 < main_~y~0;main_~x~0 := 1 + main_~x~0; 275#L19-2 assume true; 276#L18-1 [2018-11-18 13:29:12,689 INFO L796 eck$LassoCheckResult]: Loop: 276#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 277#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := 1 + main_~y~0; 279#L19-2 assume true; 276#L18-1 [2018-11-18 13:29:12,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,690 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969343, now seen corresponding path program 2 times [2018-11-18 13:29:12,690 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,690 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,691 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:29:12,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,696 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,696 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 2 times [2018-11-18 13:29:12,696 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,696 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,698 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:29:12,698 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:29:12,702 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:12,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1148833563, now seen corresponding path program 2 times [2018-11-18 13:29:12,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 13:29:12,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 13:29:12,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,703 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 13:29:12,704 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:29:12,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:12,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:12,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:29:12,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 13:29:12,770 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,771 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,771 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,771 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,771 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 13:29:12,771 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,771 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,771 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,771 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 13:29:12,771 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,772 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,772 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,774 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,811 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,811 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,815 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,815 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,831 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 13:29:12,831 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_7=1} Honda state: {v_rep~unnamed0~0~true_7=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,834 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 13:29:12,834 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_2d9db618-12ab-4123-a2f1-dea07bf76b10/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,852 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 13:29:12,852 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 13:29:12,957 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 13:29:12,959 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 13:29:12,959 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 13:29:12,959 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 13:29:12,959 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 13:29:12,959 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 13:29:12,959 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 13:29:12,959 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 13:29:12,959 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 13:29:12,960 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 13:29:12,960 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 13:29:12,960 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 13:29:12,961 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,966 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,968 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 13:29:12,994 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 13:29:12,995 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 13:29:12,995 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 13:29:12,995 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 13:29:12,996 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 13:29:12,996 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 13:29:12,996 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 13:29:12,996 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 13:29:12,996 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 13:29:12,996 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 13:29:12,999 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 13:29:13,002 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-18 13:29:13,002 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 13:29:13,002 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 13:29:13,002 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 13:29:13,003 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 13:29:13,003 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~y~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 13:29:13,003 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 13:29:13,014 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,017 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:13,032 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 13:29:13,032 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-18 13:29:13,037 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 14 transitions. Complement of second has 5 states. [2018-11-18 13:29:13,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:13,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:29:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-18 13:29:13,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 13:29:13,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:13,037 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 13:29:13,046 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:13,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,049 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:13,067 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 13:29:13,067 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-18 13:29:13,071 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 13 states and 14 transitions. Complement of second has 5 states. [2018-11-18 13:29:13,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:13,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:29:13,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-18 13:29:13,072 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 13:29:13,072 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:13,072 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 13:29:13,088 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:29:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,090 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:29:13,093 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:29:13,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:29:13,097 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 13:29:13,097 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-18 13:29:13,103 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 15 states and 16 transitions. Complement of second has 6 states. [2018-11-18 13:29:13,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 13:29:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 13:29:13,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-18 13:29:13,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-18 13:29:13,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:13,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-18 13:29:13,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:13,106 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-18 13:29:13,106 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 13:29:13,106 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2018-11-18 13:29:13,107 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:29:13,107 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-18 13:29:13,107 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 13:29:13,107 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 13:29:13,107 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 13:29:13,107 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:29:13,107 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:13,107 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:13,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 13:29:13,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 13:29:13,108 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-18 13:29:13,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:29:13,108 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 13:29:13,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:29:13,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 13:29:13,108 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:29:13,108 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:29:13,108 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 13:29:13,109 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 13:29:13,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 13:29:13,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 13:29:13,109 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:13,109 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:13,109 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:29:13,109 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 13:29:13,109 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:29:13,109 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 13:29:13,109 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 13:29:13,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 01:29:13 BoogieIcfgContainer [2018-11-18 13:29:13,114 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 13:29:13,114 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:29:13,114 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:29:13,114 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:29:13,115 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:29:11" (3/4) ... [2018-11-18 13:29:13,117 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:29:13,117 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:29:13,118 INFO L168 Benchmark]: Toolchain (without parser) took 2268.34 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 958.1 MB in the beginning and 837.7 MB in the end (delta: 120.4 MB). Peak memory consumption was 231.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:13,119 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:29:13,119 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.53 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:13,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:13,120 INFO L168 Benchmark]: Boogie Preprocessor took 11.20 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:29:13,120 INFO L168 Benchmark]: RCFGBuilder took 156.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:13,121 INFO L168 Benchmark]: BuchiAutomizer took 1926.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 837.7 MB in the end (delta: 253.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:29:13,122 INFO L168 Benchmark]: Witness Printer took 2.86 ms. Allocated memory is still 1.1 GB. Free memory is still 837.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:29:13,124 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.53 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.28 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.20 ms. Allocated memory is still 1.0 GB. Free memory is still 944.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 156.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -146.9 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1926.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 837.7 MB in the end (delta: 253.8 MB). Peak memory consumption was 253.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.86 ms. Allocated memory is still 1.1 GB. Free memory is still 837.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 6 terminating modules (2 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -1 * x + y and consists of 4 locations. One deterministic module has affine ranking function -1 * x + y and consists of 3 locations. One deterministic module has affine ranking function -1 * y + x and consists of 3 locations. One nondeterministic module has affine ranking function -1 * y + x 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 1.8s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 4. Automata minimization 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 46 SDtfs, 43 SDslu, 12 SDs, 0 SdLazy, 48 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT2 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax200 hnf100 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq150 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.6s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...