./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/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 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 13:38:04,992 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 13:38:04,993 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 13:38:05,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 13:38:05,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 13:38:05,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 13:38:05,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 13:38:05,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 13:38:05,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 13:38:05,005 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 13:38:05,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 13:38:05,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 13:38:05,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 13:38:05,007 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 13:38:05,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 13:38:05,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 13:38:05,009 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 13:38:05,010 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 13:38:05,012 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 13:38:05,013 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 13:38:05,013 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 13:38:05,014 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 13:38:05,015 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 13:38:05,015 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 13:38:05,016 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 13:38:05,016 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 13:38:05,017 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 13:38:05,017 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 13:38:05,018 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 13:38:05,018 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 13:38:05,018 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 13:38:05,019 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 13:38:05,019 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 13:38:05,019 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 13:38:05,020 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 13:38:05,020 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 13:38:05,020 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 13:38:05,030 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 13:38:05,030 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 13:38:05,031 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 13:38:05,031 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 13:38:05,031 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 13:38:05,031 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 13:38:05,031 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 13:38:05,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 13:38:05,032 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 13:38:05,033 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 13:38:05,033 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 13:38:05,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 13:38:05,034 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 13:38:05,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 13:38:05,034 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 13:38:05,034 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 13:38:05,035 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 13:38:05,035 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_a6961f31-e68e-4254-a7f0-89636f9be9d0/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 -> 2e63fdedc7f36bfa4d0d39679a5a7ea76cc5ddf1 [2018-11-23 13:38:05,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 13:38:05,065 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 13:38:05,067 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 13:38:05,068 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 13:38:05,068 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 13:38:05,069 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c [2018-11-23 13:38:05,114 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/data/8bbad4f48/0252897abff54eabb4f33d4c74e227c2/FLAGa02bc4b9e [2018-11-23 13:38:05,458 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 13:38:05,459 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/sv-benchmarks/c/termination-restricted-15/MinusUserDefined_true-termination_true-no-overflow.c [2018-11-23 13:38:05,463 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/data/8bbad4f48/0252897abff54eabb4f33d4c74e227c2/FLAGa02bc4b9e [2018-11-23 13:38:05,894 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/data/8bbad4f48/0252897abff54eabb4f33d4c74e227c2 [2018-11-23 13:38:05,897 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 13:38:05,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 13:38:05,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 13:38:05,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 13:38:05,901 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 13:38:05,902 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:38:05" (1/1) ... [2018-11-23 13:38:05,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f711c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:05, skipping insertion in model container [2018-11-23 13:38:05,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:38:05" (1/1) ... [2018-11-23 13:38:05,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 13:38:05,919 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 13:38:06,021 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:38:06,024 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 13:38:06,035 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 13:38:06,043 INFO L195 MainTranslator]: Completed translation [2018-11-23 13:38:06,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06 WrapperNode [2018-11-23 13:38:06,043 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 13:38:06,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 13:38:06,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 13:38:06,044 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 13:38:06,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 13:38:06,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 13:38:06,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 13:38:06,061 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 13:38:06,066 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,067 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... [2018-11-23 13:38:06,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 13:38:06,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 13:38:06,072 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 13:38:06,072 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 13:38:06,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 13:38:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 13:38:06,254 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 13:38:06,255 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-11-23 13:38:06,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:06 BoogieIcfgContainer [2018-11-23 13:38:06,255 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 13:38:06,256 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 13:38:06,256 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 13:38:06,258 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 13:38:06,259 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:06,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 01:38:05" (1/3) ... [2018-11-23 13:38:06,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5605cb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:38:06, skipping insertion in model container [2018-11-23 13:38:06,260 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:06,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:38:06" (2/3) ... [2018-11-23 13:38:06,261 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5605cb16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 01:38:06, skipping insertion in model container [2018-11-23 13:38:06,261 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 13:38:06,261 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:06" (3/3) ... [2018-11-23 13:38:06,262 INFO L375 chiAutomizerObserver]: Analyzing ICFG MinusUserDefined_true-termination_true-no-overflow.c [2018-11-23 13:38:06,298 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 13:38:06,299 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 13:38:06,299 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 13:38:06,299 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 13:38:06,299 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 13:38:06,299 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 13:38:06,299 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 13:38:06,299 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 13:38:06,299 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 13:38:06,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 13:38:06,323 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2018-11-23 13:38:06,324 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:06,324 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:06,328 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 13:38:06,328 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 13:38:06,328 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 13:38:06,328 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-23 13:38:06,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2018-11-23 13:38:06,328 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:06,329 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:06,329 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 13:38:06,329 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 13:38:06,333 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 4#L13-2true [2018-11-23 13:38:06,333 INFO L796 eck$LassoCheckResult]: Loop: 4#L13-2true assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 4#L13-2true [2018-11-23 13:38:06,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,337 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 13:38:06,338 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,338 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,399 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-23 13:38:06,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,408 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 13:38:06,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,409 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,458 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:06,459 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:06,459 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:06,459 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:06,459 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:38:06,460 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,460 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:06,460 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:06,460 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 13:38:06,460 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:06,460 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:06,477 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,486 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,495 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,507 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,597 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:06,598 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,613 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:06,613 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:06,631 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:06,631 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,634 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:06,634 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:06,659 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:06,660 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,664 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:06,664 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,683 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:38:06,683 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:06,700 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:38:06,701 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:06,701 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:06,701 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:06,701 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:06,701 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:38:06,701 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,701 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:06,701 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:06,701 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 13:38:06,701 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:06,702 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:06,703 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,705 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,707 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,711 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,767 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:06,770 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:38:06,772 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:06,772 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:06,773 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:06,773 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:06,773 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:06,775 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:38:06,775 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:38:06,782 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:06,782 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:06,783 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:06,783 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:06,783 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:06,783 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:06,785 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:38:06,785 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:38:06,791 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:06,792 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:06,792 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:06,793 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:38:06,793 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:06,793 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:06,793 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:06,794 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:38:06,794 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:38:06,797 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:38:06,800 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:38:06,800 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:38:06,801 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:38:06,801 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:38:06,801 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:38:06,802 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 13:38:06,802 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:38:06,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:06,839 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:06,846 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:06,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:38:06,857 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 13:38:06,858 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2018-11-23 13:38:06,891 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 23 states and 39 transitions. Complement of second has 5 states. [2018-11-23 13:38:06,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 13:38:06,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 13:38:06,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 25 transitions. [2018-11-23 13:38:06,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 1 letters. [2018-11-23 13:38:06,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:06,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-23 13:38:06,895 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:06,895 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 25 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 13:38:06,896 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:06,896 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 39 transitions. [2018-11-23 13:38:06,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:06,901 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 9 states and 16 transitions. [2018-11-23 13:38:06,902 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 13:38:06,902 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-23 13:38:06,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 16 transitions. [2018-11-23 13:38:06,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:38:06,903 INFO L705 BuchiCegarLoop]: Abstraction has 9 states and 16 transitions. [2018-11-23 13:38:06,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 16 transitions. [2018-11-23 13:38:06,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2018-11-23 13:38:06,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-23 13:38:06,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2018-11-23 13:38:06,920 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2018-11-23 13:38:06,920 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 15 transitions. [2018-11-23 13:38:06,920 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 13:38:06,921 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 15 transitions. [2018-11-23 13:38:06,921 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:06,921 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:06,921 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:06,921 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-23 13:38:06,922 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:38:06,922 INFO L794 eck$LassoCheckResult]: Stem: 60#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 61#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2018-11-23 13:38:06,922 INFO L796 eck$LassoCheckResult]: Loop: 63#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 65#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 63#L21-3 [2018-11-23 13:38:06,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1000, now seen corresponding path program 1 times [2018-11-23 13:38:06,922 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,922 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,926 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 1 times [2018-11-23 13:38:06,926 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,926 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,927 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,931 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:06,931 INFO L82 PathProgramCache]: Analyzing trace with hash 961679, now seen corresponding path program 1 times [2018-11-23 13:38:06,932 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:06,932 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:06,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:06,933 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:06,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:06,973 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:06,973 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:06,973 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:06,974 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:06,974 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:38:06,974 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:06,974 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:06,974 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:06,974 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 13:38:06,974 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:06,974 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:06,975 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,978 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:06,983 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,039 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:07,039 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/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 [2018-11-23 13:38:07,041 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,041 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,055 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:07,056 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_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,058 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,058 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,072 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:07,073 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_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,075 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,075 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,090 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:38:07,091 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,101 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:07,101 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,116 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,116 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,132 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 13:38:07,132 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_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,137 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,137 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,154 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:38:07,154 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,208 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:38:07,210 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:07,210 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:07,211 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:07,211 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:07,211 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:38:07,211 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,211 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:07,211 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:07,211 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-23 13:38:07,211 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:07,211 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:07,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,214 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,217 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,218 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,220 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,277 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:07,277 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:38:07,278 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,278 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,278 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,279 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,279 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,280 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:38:07,280 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:38:07,284 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:07,284 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,285 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,285 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:38:07,285 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,285 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,285 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,286 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:38:07,286 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:38:07,288 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:07,289 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,289 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,289 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,291 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 13:38:07,291 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 13:38:07,295 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:07,295 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,296 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,296 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:38:07,296 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,296 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,296 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,297 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:38:07,297 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:38:07,298 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 13:38:07,298 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,298 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,299 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:38:07,299 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,299 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,299 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,299 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:38:07,299 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:38:07,302 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:38:07,304 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:38:07,305 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:38:07,305 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:38:07,305 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:38:07,305 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:38:07,305 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 13:38:07,306 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:38:07,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:07,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:07,345 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:07,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:38:07,359 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 13:38:07,359 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10 Second operand 3 states. [2018-11-23 13:38:07,389 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 15 transitions. cyclomatic complexity: 10. Second operand 3 states. Result 22 states and 34 transitions. Complement of second has 7 states. [2018-11-23 13:38:07,389 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 [2018-11-23 13:38:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:38:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-23 13:38:07,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-23 13:38:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-23 13:38:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,390 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2018-11-23 13:38:07,390 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,390 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 22 states and 34 transitions. [2018-11-23 13:38:07,391 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:07,392 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 22 states to 15 states and 23 transitions. [2018-11-23 13:38:07,392 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 13:38:07,392 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 13:38:07,392 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 23 transitions. [2018-11-23 13:38:07,392 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:38:07,392 INFO L705 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-23 13:38:07,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states and 23 transitions. [2018-11-23 13:38:07,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-11-23 13:38:07,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-23 13:38:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2018-11-23 13:38:07,394 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-23 13:38:07,394 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 23 transitions. [2018-11-23 13:38:07,394 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-23 13:38:07,394 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 23 transitions. [2018-11-23 13:38:07,395 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:07,395 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 13:38:07,395 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 13:38:07,395 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1] [2018-11-23 13:38:07,395 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-23 13:38:07,396 INFO L794 eck$LassoCheckResult]: Stem: 126#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 127#L13-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 128#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 140#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 137#L21-2 assume !!(main_~x~0 > 0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 135#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2018-11-23 13:38:07,396 INFO L796 eck$LassoCheckResult]: Loop: 130#L21-3 assume !!(main_~x~0 > 0);main_~y~0 := 1 + main_~y~0;main_~res~0 := 1 + main_~res~0; 131#L21-2 assume !(main_~x~0 > 0 && main_~y~0 > 0); 130#L21-3 [2018-11-23 13:38:07,396 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:07,396 INFO L82 PathProgramCache]: Analyzing trace with hash 924176399, now seen corresponding path program 1 times [2018-11-23 13:38:07,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:07,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:07,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:07,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:07,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:07,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:38:07,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 13:38:07,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-23 13:38:07,430 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-23 13:38:07,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:07,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1640, now seen corresponding path program 2 times [2018-11-23 13:38:07,431 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 13:38:07,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 13:38:07,431 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:07,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 13:38:07,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 13:38:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:07,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 13:38:07,461 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:07,461 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:07,461 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:07,461 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:07,461 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 13:38:07,461 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,461 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:07,461 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:07,461 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 13:38:07,461 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:07,462 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:07,463 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,480 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,485 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,487 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,489 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,523 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:07,523 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,527 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 13:38:07,527 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a6961f31-e68e-4254-a7f0-89636f9be9d0/bin-2019/uautomizer/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,543 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 13:38:07,543 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 13:38:07,591 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 13:38:07,592 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 13:38:07,592 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 13:38:07,592 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 13:38:07,592 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 13:38:07,592 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 13:38:07,592 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 13:38:07,592 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 13:38:07,592 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 13:38:07,592 INFO L131 ssoRankerPreferences]: Filename of dumped script: MinusUserDefined_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-23 13:38:07,592 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 13:38:07,592 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 13:38:07,593 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,599 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,604 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 13:38:07,682 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 13:38:07,682 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 13:38:07,683 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 13:38:07,683 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 13:38:07,683 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 13:38:07,684 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 13:38:07,684 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 13:38:07,684 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 13:38:07,684 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 13:38:07,684 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 13:38:07,687 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 13:38:07,688 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 13:38:07,688 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-23 13:38:07,689 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 13:38:07,689 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 13:38:07,690 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 13:38:07,690 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-23 13:38:07,690 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 13:38:07,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 13:38:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:07,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 13:38:07,715 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 13:38:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 13:38:07,724 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-23 13:38:07,724 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13 Second operand 3 states. [2018-11-23 13:38:07,757 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 23 transitions. cyclomatic complexity: 13. Second operand 3 states. Result 43 states and 65 transitions. Complement of second has 7 states. [2018-11-23 13:38:07,758 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 [2018-11-23 13:38:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-23 13:38:07,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-11-23 13:38:07,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-23 13:38:07,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 2 letters. [2018-11-23 13:38:07,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,759 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-23 13:38:07,759 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 13:38:07,759 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 65 transitions. [2018-11-23 13:38:07,761 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-23 13:38:07,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 30 states and 45 transitions. [2018-11-23 13:38:07,762 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-23 13:38:07,762 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 4 [2018-11-23 13:38:07,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 30 states and 45 transitions. [2018-11-23 13:38:07,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-23 13:38:07,762 INFO L705 BuchiCegarLoop]: Abstraction has 30 states and 45 transitions. [2018-11-23 13:38:07,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states and 45 transitions. [2018-11-23 13:38:07,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2018-11-23 13:38:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-23 13:38:07,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 30 transitions. [2018-11-23 13:38:07,764 INFO L728 BuchiCegarLoop]: Abstraction has 19 states and 30 transitions. [2018-11-23 13:38:07,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-23 13:38:07,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 13:38:07,767 INFO L87 Difference]: Start difference. First operand 19 states and 30 transitions. Second operand 5 states. [2018-11-23 13:38:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 13:38:07,796 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2018-11-23 13:38:07,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 13:38:07,797 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 13 states and 18 transitions. [2018-11-23 13:38:07,797 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:38:07,798 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 13 states to 0 states and 0 transitions. [2018-11-23 13:38:07,798 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 13:38:07,798 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 13:38:07,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 13:38:07,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 13:38:07,798 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:38:07,798 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:38:07,798 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 13:38:07,798 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-23 13:38:07,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 13:38:07,799 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 13:38:07,799 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 13:38:07,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 01:38:07 BoogieIcfgContainer [2018-11-23 13:38:07,803 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 13:38:07,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 13:38:07,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 13:38:07,804 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 13:38:07,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:38:06" (3/4) ... [2018-11-23 13:38:07,807 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 13:38:07,807 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 13:38:07,808 INFO L168 Benchmark]: Toolchain (without parser) took 1910.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 953.8 MB in the beginning and 894.5 MB in the end (delta: 59.3 MB). Peak memory consumption was 200.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:38:07,809 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:38:07,810 INFO L168 Benchmark]: CACSL2BoogieTranslator took 145.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:38:07,810 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 13:38:07,811 INFO L168 Benchmark]: Boogie Preprocessor took 10.93 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:38:07,811 INFO L168 Benchmark]: RCFGBuilder took 182.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 13:38:07,812 INFO L168 Benchmark]: BuchiAutomizer took 1547.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.5 MB in the end (delta: 223.8 MB). Peak memory consumption was 223.8 MB. Max. memory is 11.5 GB. [2018-11-23 13:38:07,812 INFO L168 Benchmark]: Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 894.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 13:38:07,815 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 145.05 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 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 17.52 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.93 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 182.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -178.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1547.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 894.5 MB in the end (delta: 223.8 MB). Peak memory consumption was 223.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.33 ms. Allocated memory is still 1.2 GB. Free memory is still 894.5 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 (1 trivial, 3 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. One deterministic module has affine ranking function -1 * y and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.5s and 4 iterations. TraceHistogramMax:2. Analysis of lassos took 1.1s. 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, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 16 SDtfs, 18 SDslu, 3 SDs, 0 SdLazy, 43 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax164 hnf97 lsp33 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...