./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/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 ddb977b9fea860f52c9087edc999243e3a2c7a92 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:32:09,394 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:32:09,395 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:32:09,404 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:32:09,404 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:32:09,405 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:32:09,405 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:32:09,407 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:32:09,408 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:32:09,408 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:32:09,409 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:32:09,409 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:32:09,410 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:32:09,411 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:32:09,412 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:32:09,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:32:09,413 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:32:09,414 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:32:09,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:32:09,416 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:32:09,417 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:32:09,418 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:32:09,420 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:32:09,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:32:09,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:32:09,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:32:09,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:32:09,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:32:09,423 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:32:09,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:32:09,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:32:09,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:32:09,425 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:32:09,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:32:09,425 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:32:09,427 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:32:09,427 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 11:32:09,438 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:32:09,438 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:32:09,439 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:32:09,439 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:32:09,440 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:32:09,440 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:32:09,440 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:32:09,441 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:32:09,442 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:32:09,443 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:32:09,444 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:32:09,444 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:32:09,444 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:32:09,444 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:32:09,444 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:32:09,444 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:32:09,445 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:32:09,445 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_ae05b9be-4f49-479e-a5b3-da732e911624/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 -> ddb977b9fea860f52c9087edc999243e3a2c7a92 [2018-11-18 11:32:09,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:32:09,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:32:09,479 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:32:09,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:32:09,481 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:32:09,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c [2018-11-18 11:32:09,527 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/data/28f4d1b8c/18718a81115f4c09b53c3bc85af81850/FLAG06ec1e555 [2018-11-18 11:32:09,832 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:32:09,832 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/sv-benchmarks/c/termination-restricted-15/PastaC9_true-termination_true-no-overflow.c [2018-11-18 11:32:09,836 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/data/28f4d1b8c/18718a81115f4c09b53c3bc85af81850/FLAG06ec1e555 [2018-11-18 11:32:09,848 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/data/28f4d1b8c/18718a81115f4c09b53c3bc85af81850 [2018-11-18 11:32:09,850 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:32:09,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:32:09,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:32:09,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:32:09,855 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:32:09,856 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:09,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71cd05fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09, skipping insertion in model container [2018-11-18 11:32:09,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:09,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:32:09,880 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:32:09,978 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:32:09,980 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:32:09,989 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:32:09,997 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:32:09,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09 WrapperNode [2018-11-18 11:32:09,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:32:09,998 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:32:09,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:32:09,998 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:32:10,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:32:10,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:32:10,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:32:10,016 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:32:10,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,021 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,021 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... [2018-11-18 11:32:10,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:32:10,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:32:10,026 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:32:10,026 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:32:10,027 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:32:10,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:32:10,172 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:32:10,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:10 BoogieIcfgContainer [2018-11-18 11:32:10,172 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:32:10,172 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:32:10,173 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:32:10,175 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:32:10,175 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:32:10,175 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:32:09" (1/3) ... [2018-11-18 11:32:10,176 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d39538c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:32:10, skipping insertion in model container [2018-11-18 11:32:10,176 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:32:10,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:32:09" (2/3) ... [2018-11-18 11:32:10,176 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2d39538c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:32:10, skipping insertion in model container [2018-11-18 11:32:10,177 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:32:10,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:10" (3/3) ... [2018-11-18 11:32:10,178 INFO L375 chiAutomizerObserver]: Analyzing ICFG PastaC9_true-termination_true-no-overflow.c [2018-11-18 11:32:10,210 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:32:10,210 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:32:10,210 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:32:10,210 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:32:10,210 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:32:10,210 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:32:10,211 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:32:10,211 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:32:10,211 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:32:10,219 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 11:32:10,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:10,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:32:10,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:32:10,236 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:32:10,236 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 11:32:10,236 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:32:10,236 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 9 states. [2018-11-18 11:32:10,237 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:10,237 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:32:10,237 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:32:10,237 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:32:10,237 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 11:32:10,244 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 6#L14-2true [2018-11-18 11:32:10,244 INFO L796 eck$LassoCheckResult]: Loop: 6#L14-2true assume true; 5#L12-1true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 10#L14true assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 6#L14-2true [2018-11-18 11:32:10,249 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,249 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 11:32:10,251 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,251 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:10,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,311 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 1 times [2018-11-18 11:32:10,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:10,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,322 INFO L82 PathProgramCache]: Analyzing trace with hash 28694888, now seen corresponding path program 1 times [2018-11-18 11:32:10,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:10,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,378 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:10,379 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:10,379 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:10,379 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:10,379 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:32:10,379 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,380 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:10,380 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:10,380 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 11:32:10,380 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:10,380 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:10,402 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,468 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,474 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,560 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:10,560 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,575 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:10,576 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,598 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:32:10,598 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:10,630 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:32:10,632 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:10,632 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:10,632 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:10,632 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:10,632 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:32:10,632 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,632 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:10,632 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:10,632 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-18 11:32:10,632 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:10,632 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:10,634 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,640 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,652 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,654 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,698 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:10,701 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:32:10,702 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:10,703 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:10,704 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:10,704 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:10,704 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:10,704 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:10,706 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:10,706 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:10,713 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:32:10,717 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:32:10,717 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:32:10,718 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:32:10,718 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:32:10,719 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:32:10,719 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:32:10,721 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:32:10,738 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:10,745 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:10,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:10,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:10,769 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:10,770 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 9 states. Second operand 4 states. [2018-11-18 11:32:10,809 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 9 states.. Second operand 4 states. Result 27 states and 32 transitions. Complement of second has 8 states. [2018-11-18 11:32:10,809 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:10,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2018-11-18 11:32:10,812 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-18 11:32:10,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:10,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 11:32:10,813 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:10,813 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 13 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 11:32:10,814 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:10,815 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 27 states and 32 transitions. [2018-11-18 11:32:10,816 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:10,818 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 27 states to 11 states and 14 transitions. [2018-11-18 11:32:10,819 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 11:32:10,819 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-11-18 11:32:10,820 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-18 11:32:10,820 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:32:10,820 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:32:10,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-18 11:32:10,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 11:32:10,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 11:32:10,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-18 11:32:10,837 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:32:10,837 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:32:10,837 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:32:10,837 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-18 11:32:10,837 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:10,837 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:32:10,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:32:10,838 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2018-11-18 11:32:10,838 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 11:32:10,838 INFO L794 eck$LassoCheckResult]: Stem: 81#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 79#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L14-2 assume true; 88#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 89#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 86#L14-2 [2018-11-18 11:32:10,838 INFO L796 eck$LassoCheckResult]: Loop: 86#L14-2 assume true; 82#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 83#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 86#L14-2 [2018-11-18 11:32:10,838 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,839 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 1 times [2018-11-18 11:32:10,839 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,839 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:10,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,848 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 2 times [2018-11-18 11:32:10,848 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,849 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,849 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:10,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:10,855 INFO L82 PathProgramCache]: Analyzing trace with hash 150863077, now seen corresponding path program 1 times [2018-11-18 11:32:10,855 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:10,856 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:10,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,856 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:32:10,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:10,884 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:10,884 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:10,884 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:10,884 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:10,884 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:32:10,885 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,885 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:10,885 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:10,885 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:32:10,885 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:10,885 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:10,886 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,894 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,898 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,901 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,903 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:10,943 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:10,943 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,946 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:10,946 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:10,964 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:10,964 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,968 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:10,968 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:10,984 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:10,984 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:10,990 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:10,991 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,014 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:32:11,015 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,031 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:32:11,032 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:11,032 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:11,032 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:11,032 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:11,032 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:32:11,032 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,032 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:11,033 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:11,033 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:32:11,033 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:11,033 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:11,034 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,040 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,041 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,043 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,046 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,078 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:11,078 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:32:11,078 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,079 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,079 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,079 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,079 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,079 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,080 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,080 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,082 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,083 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,083 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,083 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,083 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,084 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,085 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:32:11,086 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:32:11,089 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,089 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,089 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,091 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,091 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,091 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,093 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:32:11,093 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:32:11,099 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,099 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,100 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,100 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,101 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,101 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,101 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,102 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,102 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,107 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:32:11,109 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:32:11,109 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:32:11,109 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:32:11,109 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:32:11,109 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:32:11,109 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:32:11,110 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:32:11,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:11,142 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:11,142 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 4 states. [2018-11-18 11:32:11,149 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 4 states. Result 17 states and 22 transitions. Complement of second has 7 states. [2018-11-18 11:32:11,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:11,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 11:32:11,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 11:32:11,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-18 11:32:11,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,151 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 5 letters. Loop has 6 letters. [2018-11-18 11:32:11,151 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,151 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 17 states and 22 transitions. [2018-11-18 11:32:11,152 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:11,152 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 17 states to 17 states and 22 transitions. [2018-11-18 11:32:11,152 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2018-11-18 11:32:11,152 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 11:32:11,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 22 transitions. [2018-11-18 11:32:11,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:32:11,153 INFO L705 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 11:32:11,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states and 22 transitions. [2018-11-18 11:32:11,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 11:32:11,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 11:32:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 22 transitions. [2018-11-18 11:32:11,154 INFO L728 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 11:32:11,154 INFO L608 BuchiCegarLoop]: Abstraction has 17 states and 22 transitions. [2018-11-18 11:32:11,154 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:32:11,154 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states and 22 transitions. [2018-11-18 11:32:11,155 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-11-18 11:32:11,155 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:32:11,155 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:32:11,155 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 2, 1, 1] [2018-11-18 11:32:11,155 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 11:32:11,156 INFO L794 eck$LassoCheckResult]: Stem: 157#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 155#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 156#L14-2 assume true; 158#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 159#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 165#L14-2 assume true; 168#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 167#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 162#L14-2 [2018-11-18 11:32:11,156 INFO L796 eck$LassoCheckResult]: Loop: 162#L14-2 assume true; 163#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 166#L14 assume !(main_~random~0 < 42);main_~y~0 := main_~y~0 - 1; 162#L14-2 [2018-11-18 11:32:11,156 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,156 INFO L82 PathProgramCache]: Analyzing trace with hash 150863075, now seen corresponding path program 2 times [2018-11-18 11:32:11,156 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,156 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,157 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:11,157 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,166 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,166 INFO L82 PathProgramCache]: Analyzing trace with hash 35946, now seen corresponding path program 3 times [2018-11-18 11:32:11,166 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,168 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:32:11,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1826081864, now seen corresponding path program 2 times [2018-11-18 11:32:11,171 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,171 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,172 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:32:11,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,205 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:11,206 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:11,206 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:11,206 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:11,206 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:32:11,206 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,206 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:11,206 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:11,206 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 11:32:11,206 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:11,207 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:11,208 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,215 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,226 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,230 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,261 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:11,262 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,278 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:11,278 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=1} Honda state: {ULTIMATE.start_main_~x~0=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,280 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,280 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,295 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:11,295 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,298 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,302 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:11,302 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} Honda state: {ULTIMATE.start_main_~random~0=43, ULTIMATE.start_main_#t~nondet2=43} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,317 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,318 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,342 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:32:11,342 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,366 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:32:11,366 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:11,367 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:11,367 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:11,367 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:11,367 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:32:11,367 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,367 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:11,367 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:11,367 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 11:32:11,367 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:11,367 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:11,369 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,371 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,372 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,423 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:11,423 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:32:11,423 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,424 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,424 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,424 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,424 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,425 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,425 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,425 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,430 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,431 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,431 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,431 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,431 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,432 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:32:11,432 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:32:11,435 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,436 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,436 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,436 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,436 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,437 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,437 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,439 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,442 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,442 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,443 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,443 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,444 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,445 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:32:11,447 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:32:11,447 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:32:11,448 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:32:11,448 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:32:11,448 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:32:11,448 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-18 11:32:11,448 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:32:11,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,475 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,481 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:11,498 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:11,498 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-18 11:32:11,506 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 21 states and 28 transitions. Complement of second has 7 states. [2018-11-18 11:32:11,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:11,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 11:32:11,507 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-18 11:32:11,507 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,507 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:32:11,516 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,525 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,528 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:11,552 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:11,552 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-18 11:32:11,564 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 21 states and 28 transitions. Complement of second has 7 states. [2018-11-18 11:32:11,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:11,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:11,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 9 transitions. [2018-11-18 11:32:11,566 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 9 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-18 11:32:11,566 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,566 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:32:11,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,580 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,584 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:11,590 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:11,590 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8 Second operand 4 states. [2018-11-18 11:32:11,598 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states and 22 transitions. cyclomatic complexity: 8. Second operand 4 states. Result 24 states and 32 transitions. Complement of second has 6 states. [2018-11-18 11:32:11,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:11,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-18 11:32:11,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 3 letters. [2018-11-18 11:32:11,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 11 letters. Loop has 3 letters. [2018-11-18 11:32:11,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,600 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 8 letters. Loop has 6 letters. [2018-11-18 11:32:11,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 32 transitions. [2018-11-18 11:32:11,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 11:32:11,602 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 20 states and 26 transitions. [2018-11-18 11:32:11,602 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 11:32:11,603 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 11 [2018-11-18 11:32:11,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 26 transitions. [2018-11-18 11:32:11,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:32:11,603 INFO L705 BuchiCegarLoop]: Abstraction has 20 states and 26 transitions. [2018-11-18 11:32:11,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states and 26 transitions. [2018-11-18 11:32:11,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 8. [2018-11-18 11:32:11,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-18 11:32:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2018-11-18 11:32:11,604 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-18 11:32:11,604 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2018-11-18 11:32:11,604 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 11:32:11,604 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2018-11-18 11:32:11,605 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-11-18 11:32:11,605 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:32:11,605 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:32:11,605 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:32:11,605 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-11-18 11:32:11,605 INFO L794 eck$LassoCheckResult]: Stem: 380#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_~x~0, main_~y~0, main_~random~0;havoc main_~x~0;havoc main_~y~0;havoc main_~random~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 379#L14-2 [2018-11-18 11:32:11,605 INFO L796 eck$LassoCheckResult]: Loop: 379#L14-2 assume true; 381#L12-1 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~random~0 := main_#t~nondet2;havoc main_#t~nondet2; 382#L14 assume main_~random~0 < 42;main_~x~0 := main_~x~0 - 1;main_~random~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~y~0 := main_~random~0; 379#L14-2 [2018-11-18 11:32:11,606 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,606 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 11:32:11,606 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,606 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,607 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:32:11,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,609 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,609 INFO L82 PathProgramCache]: Analyzing trace with hash 35944, now seen corresponding path program 1 times [2018-11-18 11:32:11,609 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,609 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,610 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:32:11,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,615 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,615 INFO L82 PathProgramCache]: Analyzing trace with hash 28694886, now seen corresponding path program 3 times [2018-11-18 11:32:11,615 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:32:11,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:32:11,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:32:11,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:32:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:32:11,647 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:11,647 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:11,647 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:11,647 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:11,647 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:32:11,647 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,647 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:11,648 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:11,648 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 11:32:11,648 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:11,648 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:11,648 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,650 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,655 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,695 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:11,695 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,699 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,699 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,714 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:32:11,714 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=41} Honda state: {ULTIMATE.start_main_#t~nondet2=41} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,717 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:32:11,717 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ae05b9be-4f49-479e-a5b3-da732e911624/bin-2019/uautomizer/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,734 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:32:11,734 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:32:11,751 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:32:11,752 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:32:11,752 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:32:11,752 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:32:11,752 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:32:11,752 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:32:11,752 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:32:11,752 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:32:11,752 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:32:11,752 INFO L131 ssoRankerPreferences]: Filename of dumped script: PastaC9_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 11:32:11,752 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:32:11,752 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:32:11,753 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,755 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,758 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,765 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:32:11,805 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:32:11,805 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:32:11,805 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,806 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,806 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,806 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,806 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,806 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,806 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,807 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,807 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:32:11,808 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:32:11,808 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:32:11,808 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:32:11,808 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:32:11,809 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:32:11,809 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:32:11,809 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:32:11,809 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:32:11,811 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:32:11,812 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:32:11,812 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 11:32:11,812 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:32:11,813 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:32:11,813 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:32:11,813 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-18 11:32:11,813 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:32:11,833 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:32:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,836 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:32:11,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:32:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:32:11,845 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:32:11,845 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3 Second operand 4 states. [2018-11-18 11:32:11,854 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 3. Second operand 4 states. Result 18 states and 25 transitions. Complement of second has 6 states. [2018-11-18 11:32:11,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:32:11,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:32:11,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-18 11:32:11,857 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 3 letters. [2018-11-18 11:32:11,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 5 letters. Loop has 3 letters. [2018-11-18 11:32:11,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,858 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 6 letters. [2018-11-18 11:32:11,858 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:32:11,858 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 25 transitions. [2018-11-18 11:32:11,861 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:32:11,861 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 0 states and 0 transitions. [2018-11-18 11:32:11,861 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:32:11,861 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:32:11,861 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:32:11,861 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:32:11,861 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:32:11,861 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:32:11,861 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:32:11,861 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 11:32:11,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:32:11,862 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:32:11,862 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 11:32:11,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:32:11 BoogieIcfgContainer [2018-11-18 11:32:11,866 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:32:11,867 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:32:11,867 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:32:11,867 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:32:11,867 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:32:10" (3/4) ... [2018-11-18 11:32:11,869 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:32:11,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:32:11,870 INFO L168 Benchmark]: Toolchain (without parser) took 2019.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 961.8 MB in the beginning and 850.5 MB in the end (delta: 111.3 MB). Peak memory consumption was 262.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:11,871 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:32:11,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:11,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:11,872 INFO L168 Benchmark]: Boogie Preprocessor took 10.31 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:32:11,873 INFO L168 Benchmark]: RCFGBuilder took 146.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:11,873 INFO L168 Benchmark]: BuchiAutomizer took 1693.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.5 MB in the end (delta: 279.2 MB). Peak memory consumption was 279.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:32:11,874 INFO L168 Benchmark]: Witness Printer took 3.03 ms. Allocated memory is still 1.2 GB. Free memory is still 850.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:32:11,876 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.60 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.33 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.31 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.0 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1693.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 850.5 MB in the end (delta: 279.2 MB). Peak memory consumption was 279.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.03 ms. Allocated memory is still 1.2 GB. Free memory is still 850.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function y and consists of 5 locations. One deterministic module has affine ranking function y and consists of 4 locations. One deterministic module has affine ranking function x and consists of 4 locations. One nondeterministic module has affine ranking function y and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 1.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 17 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 44 SDtfs, 38 SDslu, 19 SDs, 0 SdLazy, 33 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax158 hnf97 lsp32 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq163 hnf92 smp100 dnf100 smp100 tf112 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 6ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...