./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 0.1.23-1dbac8b [2018-11-10 05:17:17,423 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:17:17,424 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:17:17,430 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:17:17,430 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:17:17,431 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:17:17,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:17:17,433 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:17:17,434 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:17:17,435 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:17:17,435 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:17:17,435 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:17:17,436 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:17:17,437 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:17:17,438 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:17:17,438 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:17:17,438 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:17:17,440 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:17:17,441 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:17:17,442 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:17:17,443 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:17:17,443 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:17:17,445 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:17:17,446 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:17:17,446 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:17:17,446 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:17:17,447 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:17:17,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:17:17,448 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:17:17,448 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:17:17,448 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:17:17,449 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:17:17,449 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:17:17,449 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:17:17,450 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:17:17,450 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:17:17,450 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-10 05:17:17,458 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:17:17,458 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:17:17,459 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 05:17:17,460 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-10 05:17:17,460 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-10 05:17:17,461 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-10 05:17:17,461 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:17:17,461 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:17:17,461 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:17:17,461 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:17:17,462 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-10 05:17:17,463 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:17:17,463 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:17:17,464 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-10 05:17:17,464 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:17:17,464 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 05:17:17,464 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-10 05:17:17,465 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-10 05:17:17,465 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_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:17,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:17:17,498 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:17:17,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:17:17,502 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:17:17,503 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:17:17,503 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-10 05:17:17,543 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/data/36b9379c2/6e49e739b489419da76019deb1f9c80f/FLAG3699ca48a [2018-11-10 05:17:17,959 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:17:17,959 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-10 05:17:17,964 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/data/36b9379c2/6e49e739b489419da76019deb1f9c80f/FLAG3699ca48a [2018-11-10 05:17:17,976 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/bin-2019/uautomizer/data/36b9379c2/6e49e739b489419da76019deb1f9c80f [2018-11-10 05:17:17,979 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:17:17,980 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:17:17,981 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:17:17,981 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:17:17,984 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:17:17,984 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:17:17" (1/1) ... [2018-11-10 05:17:17,986 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac897aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:17, skipping insertion in model container [2018-11-10 05:17:17,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:17:17" (1/1) ... [2018-11-10 05:17:17,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:17:18,008 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:17:18,115 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:17:18,117 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:17:18,126 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:17:18,134 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:17:18,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18 WrapperNode [2018-11-10 05:17:18,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:17:18,135 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:17:18,135 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:17:18,135 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:17:18,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,144 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,157 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:17:18,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:17:18,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:17:18,157 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:17:18,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,168 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... [2018-11-10 05:17:18,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:17:18,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:17:18,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:17:18,170 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:17:18,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:18,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:17:18,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:17:18,324 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:17:18,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:17:18 BoogieIcfgContainer [2018-11-10 05:17:18,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:17:18,325 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-10 05:17:18,325 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-10 05:17:18,328 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-10 05:17:18,328 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:17:18,328 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 10.11 05:17:17" (1/3) ... [2018-11-10 05:17:18,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189d8081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:17:18, skipping insertion in model container [2018-11-10 05:17:18,329 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:17:18,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:17:18" (2/3) ... [2018-11-10 05:17:18,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@189d8081 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 10.11 05:17:18, skipping insertion in model container [2018-11-10 05:17:18,329 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-10 05:17:18,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:17:18" (3/3) ... [2018-11-10 05:17:18,331 INFO L375 chiAutomizerObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c [2018-11-10 05:17:18,370 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 05:17:18,370 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-10 05:17:18,370 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-10 05:17:18,370 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-10 05:17:18,371 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:17:18,371 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:17:18,371 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-10 05:17:18,371 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:17:18,371 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-10 05:17:18,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 05:17:18,396 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:18,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:17:18,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:17:18,400 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 05:17:18,401 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 05:17:18,401 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-10 05:17:18,401 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-11-10 05:17:18,401 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:18,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:17:18,402 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:17:18,402 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-10 05:17:18,402 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 05:17:18,409 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 7#L17true assume main_~x~0 >= 0 && main_~y~0 >= 0; 8#L19-2true [2018-11-10 05:17:18,410 INFO L795 eck$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 := main_~x~0 + 1; 8#L19-2true [2018-11-10 05:17:18,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:18,415 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2018-11-10 05:17:18,416 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:18,417 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:18,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:18,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:18,474 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 1 times [2018-11-10 05:17:18,474 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:18,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:18,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,476 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:18,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,484 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:18,485 INFO L82 PathProgramCache]: Analyzing trace with hash 889508810, now seen corresponding path program 1 times [2018-11-10 05:17:18,485 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:18,485 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:18,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:18,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:18,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:18,539 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:18,540 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:18,540 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:18,540 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:18,540 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:17:18,540 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:18,541 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:18,541 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:18,541 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 05:17:18,541 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:18,541 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:18,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,571 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,577 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,620 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:18,620 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:18,624 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:18,624 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:18,643 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:17:18,644 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:18,650 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:18,650 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:18,671 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:17:18,671 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:18,673 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:18,673 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:18,691 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:17:18,691 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:18,842 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:17:18,843 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:18,843 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:18,843 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:18,843 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:18,843 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:17:18,843 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:18,843 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:18,843 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:18,843 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-10 05:17:18,843 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:18,843 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:18,844 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,847 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,851 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:18,926 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:18,929 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:17:18,930 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 [2018-11-10 05:17:18,931 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:18,931 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:18,931 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:18,931 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:18,934 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:17:18,934 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:17:18,940 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:17:18,940 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 [2018-11-10 05:17:18,941 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:18,941 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:17:18,942 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:18,942 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:18,942 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:18,942 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:17:18,943 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:17:18,948 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:17:18,954 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 05:17:18,954 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 05:17:18,955 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:17:18,955 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 05:17:18,956 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:17:18,956 INFO L519 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 [] [2018-11-10 05:17:18,957 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 05:17:18,973 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:18,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:18,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:18,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:19,002 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 [2018-11-10 05:17:19,003 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2018-11-10 05:17:19,032 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. [2018-11-10 05:17:19,033 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 [2018-11-10 05:17:19,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:17:19,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2018-11-10 05:17:19,035 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 3 letters. [2018-11-10 05:17:19,036 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 05:17:19,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 18 transitions. Stem has 3 letters. Loop has 6 letters. [2018-11-10 05:17:19,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 37 transitions. [2018-11-10 05:17:19,040 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,042 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 12 states and 15 transitions. [2018-11-10 05:17:19,043 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-11-10 05:17:19,043 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2018-11-10 05:17:19,044 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 15 transitions. [2018-11-10 05:17:19,044 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:17:19,044 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-10 05:17:19,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 15 transitions. [2018-11-10 05:17:19,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-10 05:17:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-10 05:17:19,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 15 transitions. [2018-11-10 05:17:19,060 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-10 05:17:19,060 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 15 transitions. [2018-11-10 05:17:19,060 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-10 05:17:19,060 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 15 transitions. [2018-11-10 05:17:19,061 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:17:19,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:17:19,061 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-10 05:17:19,061 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 05:17:19,061 INFO L793 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 84#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 85#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 94#L19-2 assume true; 91#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 95#L19 assume !(main_~x~0 < main_~y~0);main_~y~0 := main_~y~0 + 1; 87#L19-2 [2018-11-10 05:17:19,061 INFO L795 eck$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 := main_~x~0 + 1; 87#L19-2 [2018-11-10 05:17:19,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,062 INFO L82 PathProgramCache]: Analyzing trace with hash 889508812, now seen corresponding path program 1 times [2018-11-10 05:17:19,062 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,062 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:19,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,067 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,067 INFO L82 PathProgramCache]: Analyzing trace with hash 38923, now seen corresponding path program 2 times [2018-11-10 05:17:19,067 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,067 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,068 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:19,068 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,072 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,072 INFO L82 PathProgramCache]: Analyzing trace with hash -591188896, now seen corresponding path program 1 times [2018-11-10 05:17:19,072 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,072 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,073 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:17:19,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:19,113 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:17:19,113 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 05:17:19,154 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:19,154 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:19,154 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:19,154 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:19,154 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:17:19,154 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:19,154 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:19,154 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:19,154 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 05:17:19,154 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:19,154 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:19,155 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,188 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:19,188 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,198 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:19,214 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:17:19,214 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,217 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,217 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:19,233 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:17:19,233 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,235 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,235 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,252 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:17:19,252 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:19,411 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:17:19,412 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:19,412 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:19,412 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:19,413 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:19,413 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:17:19,413 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:19,413 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:19,413 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:19,413 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-10 05:17:19,413 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:19,413 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:19,414 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,416 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,417 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,440 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:19,440 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:17:19,441 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 [2018-11-10 05:17:19,441 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:19,442 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:19,442 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:19,442 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:19,443 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:17:19,443 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:17:19,446 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:17:19,447 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 [2018-11-10 05:17:19,447 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:19,447 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:19,447 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:19,447 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:19,448 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-10 05:17:19,448 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-10 05:17:19,452 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-10 05:17:19,452 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 [2018-11-10 05:17:19,453 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:19,453 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:17:19,453 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:19,453 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:19,453 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:19,454 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:17:19,454 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:17:19,457 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:17:19,460 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-10 05:17:19,460 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 05:17:19,460 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:17:19,460 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 05:17:19,461 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:17:19,461 INFO L519 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 [] [2018-11-10 05:17:19,461 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 05:17:19,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,492 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:19,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:19,492 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 [2018-11-10 05:17:19,493 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 15 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-10 05:17:19,501 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. [2018-11-10 05:17:19,502 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 [2018-11-10 05:17:19,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-10 05:17:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 10 transitions. [2018-11-10 05:17:19,502 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 3 letters. [2018-11-10 05:17:19,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 9 letters. Loop has 3 letters. [2018-11-10 05:17:19,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,503 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 10 transitions. Stem has 6 letters. Loop has 6 letters. [2018-11-10 05:17:19,503 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,503 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 23 transitions. [2018-11-10 05:17:19,504 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 18 states and 23 transitions. [2018-11-10 05:17:19,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 11 [2018-11-10 05:17:19,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-10 05:17:19,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 23 transitions. [2018-11-10 05:17:19,505 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:17:19,505 INFO L705 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-10 05:17:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states and 23 transitions. [2018-11-10 05:17:19,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 05:17:19,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 05:17:19,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2018-11-10 05:17:19,507 INFO L728 BuchiCegarLoop]: Abstraction has 18 states and 23 transitions. [2018-11-10 05:17:19,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 05:17:19,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:17:19,510 INFO L87 Difference]: Start difference. First operand 18 states and 23 transitions. Second operand 5 states. [2018-11-10 05:17:19,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:17:19,526 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2018-11-10 05:17:19,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 05:17:19,526 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 19 transitions. [2018-11-10 05:17:19,527 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 15 states and 17 transitions. [2018-11-10 05:17:19,527 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 12 [2018-11-10 05:17:19,527 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 12 [2018-11-10 05:17:19,528 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 17 transitions. [2018-11-10 05:17:19,528 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:17:19,528 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-10 05:17:19,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 17 transitions. [2018-11-10 05:17:19,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2018-11-10 05:17:19,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-10 05:17:19,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-11-10 05:17:19,529 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-10 05:17:19,529 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-11-10 05:17:19,529 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-10 05:17:19,529 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2018-11-10 05:17:19,530 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,530 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:17:19,530 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:17:19,530 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-10 05:17:19,530 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 05:17:19,530 INFO L793 eck$LassoCheckResult]: Stem: 201#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 199#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 200#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 208#L19-2 assume true; 202#L18-1 [2018-11-10 05:17:19,530 INFO L795 eck$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 := main_~y~0 + 1; 206#L19-2 assume true; 202#L18-1 [2018-11-10 05:17:19,530 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,530 INFO L82 PathProgramCache]: Analyzing trace with hash 925607, now seen corresponding path program 1 times [2018-11-10 05:17:19,530 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,530 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:19,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,534 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,534 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 1 times [2018-11-10 05:17:19,535 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,535 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:19,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,540 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,540 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969405, now seen corresponding path program 2 times [2018-11-10 05:17:19,540 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,540 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,541 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:17:19,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,574 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:19,574 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:19,574 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:19,574 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:19,574 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:17:19,574 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:19,574 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:19,574 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:19,574 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 05:17:19,574 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:19,574 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:19,575 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,580 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,583 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,606 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:19,606 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,608 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,609 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:17:19,628 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:19,772 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:17:19,773 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:19,773 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:19,773 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:19,773 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:19,773 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:17:19,773 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:19,774 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:19,774 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:19,774 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-10 05:17:19,774 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:19,774 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:19,775 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,782 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,784 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,806 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:19,806 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:17:19,807 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 [2018-11-10 05:17:19,807 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:19,807 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:17:19,807 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:19,807 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:19,807 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:19,808 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:17:19,808 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:17:19,810 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:17:19,812 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 05:17:19,812 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 05:17:19,813 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:17:19,813 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 05:17:19,813 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:17:19,813 INFO L519 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 [] [2018-11-10 05:17:19,813 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 05:17:19,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:19,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,830 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:19,842 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 [2018-11-10 05:17:19,842 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 12 transitions. cyclomatic complexity: 4 Second operand 4 states. [2018-11-10 05:17:19,854 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. [2018-11-10 05:17:19,855 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 [2018-11-10 05:17:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 05:17:19,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 8 transitions. [2018-11-10 05:17:19,855 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2018-11-10 05:17:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-10 05:17:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,856 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2018-11-10 05:17:19,856 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:19,857 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 22 transitions. [2018-11-10 05:17:19,857 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,858 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 12 states and 13 transitions. [2018-11-10 05:17:19,858 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-10 05:17:19,858 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-10 05:17:19,858 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2018-11-10 05:17:19,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-10 05:17:19,858 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2018-11-10 05:17:19,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2018-11-10 05:17:19,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2018-11-10 05:17:19,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-11-10 05:17:19,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2018-11-10 05:17:19,860 INFO L728 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-10 05:17:19,860 INFO L608 BuchiCegarLoop]: Abstraction has 10 states and 11 transitions. [2018-11-10 05:17:19,860 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-10 05:17:19,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 11 transitions. [2018-11-10 05:17:19,860 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-10 05:17:19,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-10 05:17:19,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-10 05:17:19,861 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-11-10 05:17:19,861 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-10 05:17:19,861 INFO L793 eck$LassoCheckResult]: Stem: 272#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 270#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 271#L17 assume main_~x~0 >= 0 && main_~y~0 >= 0; 273#L19-2 assume true; 274#L18-1 assume !!(main_~x~0 - main_~y~0 > 2 || main_~y~0 - main_~x~0 > 2); 278#L19 assume main_~x~0 < main_~y~0;main_~x~0 := main_~x~0 + 1; 275#L19-2 assume true; 276#L18-1 [2018-11-10 05:17:19,861 INFO L795 eck$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 := main_~y~0 + 1; 279#L19-2 assume true; 276#L18-1 [2018-11-10 05:17:19,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,861 INFO L82 PathProgramCache]: Analyzing trace with hash 1804969343, now seen corresponding path program 2 times [2018-11-10 05:17:19,861 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,861 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,862 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:17:19,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,866 INFO L82 PathProgramCache]: Analyzing trace with hash 44835, now seen corresponding path program 2 times [2018-11-10 05:17:19,867 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,867 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,868 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:17:19,868 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 05:17:19,871 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:19,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1148833563, now seen corresponding path program 2 times [2018-11-10 05:17:19,872 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 05:17:19,872 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 05:17:19,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,873 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-10 05:17:19,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:17:19,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:19,919 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:19,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:17:19,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 05:17:19,935 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:19,935 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:19,935 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:19,935 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:19,935 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-10 05:17:19,935 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:19,935 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:19,936 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:19,936 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 05:17:19,936 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:19,936 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:19,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,949 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:19,976 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:19,976 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,977 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,977 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:19,994 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-11-10 05:17:19,994 INFO L446 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_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:19,997 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-10 05:17:19,997 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fa735da3-c7e9-4fb5-b5a6-11d1552dc8be/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 [2018-11-10 05:17:20,014 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-10 05:17:20,014 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-10 05:17:20,156 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-10 05:17:20,157 INFO L214 LassoAnalysis]: Preferences: [2018-11-10 05:17:20,158 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-10 05:17:20,158 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-10 05:17:20,158 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-10 05:17:20,158 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-10 05:17:20,158 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-10 05:17:20,158 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-10 05:17:20,158 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-10 05:17:20,158 INFO L131 ssoRankerPreferences]: Filename of dumped script: AliasDarteFeautrierGonnord-SAS2010-wise_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-10 05:17:20,159 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-10 05:17:20,159 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-11-10 05:17:20,160 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:20,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:20,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-10 05:17:20,195 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-11-10 05:17:20,195 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-11-10 05:17:20,195 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 [2018-11-10 05:17:20,196 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-10 05:17:20,196 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-10 05:17:20,196 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-10 05:17:20,196 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-10 05:17:20,196 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-10 05:17:20,196 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-10 05:17:20,196 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-10 05:17:20,199 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-10 05:17:20,201 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-11-10 05:17:20,201 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-10 05:17:20,201 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-10 05:17:20,201 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-10 05:17:20,202 INFO L517 LassoAnalysis]: Proved termination. [2018-11-10 05:17:20,202 INFO L519 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 [] [2018-11-10 05:17:20,202 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-10 05:17:20,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,215 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,218 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:20,223 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 [2018-11-10 05:17:20,224 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 05:17:20,237 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. [2018-11-10 05:17:20,237 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 [2018-11-10 05:17:20,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 05:17:20,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-10 05:17:20,238 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-10 05:17:20,238 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:20,238 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 05:17:20,260 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:20,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:20,270 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 [2018-11-10 05:17:20,270 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 05:17:20,273 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. [2018-11-10 05:17:20,274 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 [2018-11-10 05:17:20,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 05:17:20,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2018-11-10 05:17:20,275 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-10 05:17:20,275 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:20,275 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-10 05:17:20,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:17:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:17:20,289 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 05:17:20,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:17:20,294 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 [2018-11-10 05:17:20,294 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states and 11 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-10 05:17:20,299 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. [2018-11-10 05:17:20,300 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 [2018-11-10 05:17:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-10 05:17:20,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-11-10 05:17:20,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 3 letters. [2018-11-10 05:17:20,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:20,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 10 letters. Loop has 3 letters. [2018-11-10 05:17:20,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:20,301 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 6 letters. [2018-11-10 05:17:20,301 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-10 05:17:20,301 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 16 transitions. [2018-11-10 05:17:20,301 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 05:17:20,301 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-10 05:17:20,301 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 05:17:20,302 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 05:17:20,302 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 05:17:20,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 05:17:20,302 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:17:20,302 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:17:20,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 05:17:20,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 05:17:20,302 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-10 05:17:20,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:17:20,302 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-10 05:17:20,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 05:17:20,302 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 05:17:20,303 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-10 05:17:20,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-10 05:17:20,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-10 05:17:20,303 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-10 05:17:20,303 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:17:20,303 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-10 05:17:20,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-10 05:17:20,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 10.11 05:17:20 BoogieIcfgContainer [2018-11-10 05:17:20,307 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-10 05:17:20,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:17:20,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:17:20,308 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:17:20,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:17:18" (3/4) ... [2018-11-10 05:17:20,310 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-10 05:17:20,310 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:17:20,311 INFO L168 Benchmark]: Toolchain (without parser) took 2331.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 960.3 MB in the beginning and 890.5 MB in the end (delta: 69.8 MB). Peak memory consumption was 198.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:17:20,312 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:17:20,312 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.88 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:17:20,312 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.05 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:17:20,313 INFO L168 Benchmark]: Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:17:20,313 INFO L168 Benchmark]: RCFGBuilder took 155.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:17:20,314 INFO L168 Benchmark]: BuchiAutomizer took 1982.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.5 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:17:20,314 INFO L168 Benchmark]: Witness Printer took 2.81 ms. Allocated memory is still 1.2 GB. Free memory is still 890.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:17:20,316 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.88 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.4 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 22.05 ms. Allocated memory is still 1.0 GB. Free memory is still 949.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.66 ms. Allocated memory is still 1.0 GB. Free memory was 949.4 MB in the beginning and 946.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 155.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 128.5 MB). Free memory was 946.7 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1982.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 890.5 MB in the end (delta: 228.4 MB). Peak memory consumption was 228.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.81 ms. Allocated memory is still 1.2 GB. Free memory is still 890.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 1.9s 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: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.7s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...