./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/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 da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:29:54,944 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:29:54,946 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:29:54,955 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:29:54,955 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:29:54,956 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:29:54,957 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:29:54,958 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:29:54,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:29:54,961 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:29:54,962 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:29:54,962 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:29:54,963 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:29:54,967 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:29:54,968 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:29:54,969 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:29:54,969 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:29:54,971 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:29:54,973 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:29:54,974 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:29:54,976 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:29:54,977 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:29:54,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:29:54,979 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:29:54,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:29:54,980 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:29:54,981 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:29:54,982 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:29:54,982 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:29:54,984 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:29:54,984 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:29:54,984 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:29:54,985 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:29:54,985 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:29:54,985 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:29:54,986 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:29:54,986 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-18 11:29:54,999 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:29:54,999 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:29:55,000 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 11:29:55,001 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 11:29:55,001 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 11:29:55,001 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 11:29:55,001 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 11:29:55,001 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 11:29:55,002 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 11:29:55,002 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 11:29:55,002 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 11:29:55,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:29:55,002 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 11:29:55,003 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:29:55,003 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:29:55,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:29:55,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 11:29:55,006 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:29:55,006 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:29:55,006 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 11:29:55,006 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:29:55,007 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 11:29:55,007 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 11:29:55,008 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 11:29:55,008 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_320e4e7b-e5ca-47c1-a83b-85b515bc3191/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 -> da7ccbcfff0bcaf24fe1bd516f01da1d9e0ab2a4 [2018-11-18 11:29:55,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:29:55,052 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:29:55,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:29:55,056 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:29:55,057 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:29:55,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-11-18 11:29:55,107 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/data/92583ca15/866fce7aebb8489baff61a8cef88ae0e/FLAG4e98bfca8 [2018-11-18 11:29:55,485 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:29:55,486 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/sv-benchmarks/c/termination-restricted-15/c.01_assume_true-termination_true-no-overflow.c [2018-11-18 11:29:55,492 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/data/92583ca15/866fce7aebb8489baff61a8cef88ae0e/FLAG4e98bfca8 [2018-11-18 11:29:55,968 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/data/92583ca15/866fce7aebb8489baff61a8cef88ae0e [2018-11-18 11:29:55,973 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:29:55,988 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:29:55,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:29:55,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:29:55,997 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:29:55,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:29:55" (1/1) ... [2018-11-18 11:29:56,003 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ecc63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56, skipping insertion in model container [2018-11-18 11:29:56,003 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:29:55" (1/1) ... [2018-11-18 11:29:56,019 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:29:56,037 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:29:56,242 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:29:56,246 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:29:56,261 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:29:56,280 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:29:56,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56 WrapperNode [2018-11-18 11:29:56,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:29:56,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:29:56,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:29:56,283 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:29:56,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:29:56,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:29:56,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:29:56,337 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:29:56,346 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... [2018-11-18 11:29:56,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:29:56,358 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:29:56,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:29:56,358 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:29:56,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:56,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:29:56,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:29:56,827 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:29:56,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:29:56 BoogieIcfgContainer [2018-11-18 11:29:56,828 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:29:56,828 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 11:29:56,828 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 11:29:56,832 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 11:29:56,832 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:29:56,833 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 11:29:55" (1/3) ... [2018-11-18 11:29:56,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ba9c80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:29:56, skipping insertion in model container [2018-11-18 11:29:56,834 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:29:56,834 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:29:56" (2/3) ... [2018-11-18 11:29:56,834 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6ba9c80d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 11:29:56, skipping insertion in model container [2018-11-18 11:29:56,835 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 11:29:56,835 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:29:56" (3/3) ... [2018-11-18 11:29:56,836 INFO L375 chiAutomizerObserver]: Analyzing ICFG c.01_assume_true-termination_true-no-overflow.c [2018-11-18 11:29:56,946 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:29:56,947 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 11:29:56,947 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 11:29:56,947 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 11:29:56,947 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:29:56,947 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:29:56,948 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 11:29:56,948 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:29:56,948 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 11:29:56,962 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 11:29:56,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:29:56,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:29:56,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:29:56,991 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:29:56,991 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 11:29:56,991 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 11:29:56,991 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2018-11-18 11:29:56,992 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:29:56,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:29:56,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:29:56,993 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:29:56,993 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 11:29:57,005 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L9-3true [2018-11-18 11:29:57,006 INFO L796 eck$LassoCheckResult]: Loop: 8#L9-3true assume true; 11#L9-1true assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 12#L11-3true assume !true; 9#L11-4true main_~x~0 := main_~x~0 - 1; 8#L9-3true [2018-11-18 11:29:57,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:57,013 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-11-18 11:29:57,014 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:57,015 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:57,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:57,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:57,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1114569, now seen corresponding path program 1 times [2018-11-18 11:29:57,100 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:57,100 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:57,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:57,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:29:57,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:29:57,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:29:57,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 11:29:57,136 INFO L811 eck$LassoCheckResult]: loop already infeasible [2018-11-18 11:29:57,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 11:29:57,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 11:29:57,152 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-11-18 11:29:57,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:29:57,158 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-11-18 11:29:57,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:29:57,161 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 12 transitions. [2018-11-18 11:29:57,161 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:29:57,165 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 7 states and 8 transitions. [2018-11-18 11:29:57,166 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 11:29:57,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 11:29:57,167 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 8 transitions. [2018-11-18 11:29:57,168 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:29:57,168 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 11:29:57,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 8 transitions. [2018-11-18 11:29:57,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-11-18 11:29:57,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-11-18 11:29:57,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2018-11-18 11:29:57,198 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 11:29:57,198 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 8 transitions. [2018-11-18 11:29:57,198 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 11:29:57,198 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 8 transitions. [2018-11-18 11:29:57,205 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2018-11-18 11:29:57,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:29:57,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:29:57,205 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-18 11:29:57,205 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2018-11-18 11:29:57,206 INFO L794 eck$LassoCheckResult]: Stem: 35#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 30#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 31#L9-3 [2018-11-18 11:29:57,206 INFO L796 eck$LassoCheckResult]: Loop: 31#L9-3 assume true; 36#L9-1 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 34#L11-3 assume true; 32#L11-1 assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 33#L11-4 main_~x~0 := main_~x~0 - 1; 31#L9-3 [2018-11-18 11:29:57,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:57,206 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-11-18 11:29:57,206 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:57,206 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:57,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:57,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,211 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:57,213 INFO L82 PathProgramCache]: Analyzing trace with hash 34543791, now seen corresponding path program 1 times [2018-11-18 11:29:57,213 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:57,213 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:57,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,215 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:29:57,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,232 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:57,232 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983277, now seen corresponding path program 1 times [2018-11-18 11:29:57,232 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:57,232 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:57,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,233 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:57,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:57,500 WARN L180 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 15 [2018-11-18 11:29:57,673 WARN L180 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 11:29:57,698 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:29:57,704 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:29:57,704 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:29:57,704 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:29:57,704 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:29:57,704 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:57,705 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:29:57,705 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:29:57,705 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:29:57,705 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:29:57,705 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:29:57,787 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:57,867 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:57,891 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:58,036 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 11:29:58,362 WARN L180 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-11-18 11:29:58,634 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:29:58,635 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:58,644 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:58,644 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:29:58,676 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:29:58,676 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_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:58,682 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:58,683 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:29:58,710 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:29:58,710 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_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:58,714 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:58,714 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:58,743 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:29:58,743 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:29:58,773 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:29:58,775 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:29:58,775 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:29:58,775 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:29:58,775 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:29:58,776 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:29:58,776 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:58,776 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:29:58,776 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:29:58,776 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-18 11:29:58,776 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:29:58,776 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:29:58,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:58,809 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:58,824 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:59,085 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:29:59,089 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:29:59,091 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:29:59,092 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:29:59,092 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:29:59,092 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:29:59,092 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:29:59,096 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:29:59,096 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:29:59,101 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:29:59,102 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:29:59,102 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:29:59,102 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:29:59,102 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:29:59,103 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:29:59,104 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:29:59,104 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:29:59,111 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:29:59,111 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:29:59,113 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:29:59,113 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:29:59,113 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:29:59,113 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:29:59,113 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:29:59,114 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:29:59,114 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:29:59,127 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:29:59,133 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:29:59,133 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 11:29:59,135 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:29:59,135 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:29:59,135 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:29:59,136 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [] [2018-11-18 11:29:59,137 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:29:59,270 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:29:59,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:29:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:29:59,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:29:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:29:59,380 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-11-18 11:29:59,381 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2 Second operand 4 states. [2018-11-18 11:29:59,440 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 8 transitions. cyclomatic complexity: 2. Second operand 4 states. Result 12 states and 15 transitions. Complement of second has 6 states. [2018-11-18 11:29:59,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-11-18 11:29:59,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-18 11:29:59,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-11-18 11:29:59,444 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 5 letters. [2018-11-18 11:29:59,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:29:59,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 5 letters. [2018-11-18 11:29:59,445 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:29:59,445 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 10 letters. [2018-11-18 11:29:59,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:29:59,446 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 12 states and 15 transitions. [2018-11-18 11:29:59,447 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:29:59,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 12 states to 11 states and 14 transitions. [2018-11-18 11:29:59,447 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-11-18 11:29:59,447 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-11-18 11:29:59,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 14 transitions. [2018-11-18 11:29:59,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:29:59,448 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:29:59,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 14 transitions. [2018-11-18 11:29:59,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-18 11:29:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-18 11:29:59,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2018-11-18 11:29:59,449 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:29:59,449 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 14 transitions. [2018-11-18 11:29:59,449 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 11:29:59,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 14 transitions. [2018-11-18 11:29:59,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:29:59,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:29:59,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:29:59,450 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2018-11-18 11:29:59,450 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 11:29:59,450 INFO L794 eck$LassoCheckResult]: Stem: 100#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 93#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 94#L9-3 assume true; 101#L9-1 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 96#L11-3 [2018-11-18 11:29:59,451 INFO L796 eck$LassoCheckResult]: Loop: 96#L11-3 assume true; 95#L11-1 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 96#L11-3 [2018-11-18 11:29:59,451 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:59,451 INFO L82 PathProgramCache]: Analyzing trace with hash 925641, now seen corresponding path program 1 times [2018-11-18 11:29:59,451 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:59,451 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:59,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:59,452 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:59,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 1 times [2018-11-18 11:29:59,456 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:59,456 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:59,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:59,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,466 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:29:59,466 INFO L82 PathProgramCache]: Analyzing trace with hash 889541519, now seen corresponding path program 1 times [2018-11-18 11:29:59,467 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:29:59,467 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:29:59,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:29:59,469 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:29:59,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:29:59,544 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:29:59,545 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:29:59,545 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:29:59,545 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:29:59,545 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:29:59,545 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:59,545 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:29:59,545 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:29:59,545 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 11:29:59,545 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:29:59,545 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:29:59,547 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:59,556 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:59,563 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:59,663 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:29:59,663 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:59,666 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:59,666 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:29:59,702 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:29:59,702 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_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:59,711 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:59,711 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:29:59,746 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:29:59,746 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_320e4e7b-e5ca-47c1-a83b-85b515bc3191/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) [2018-11-18 11:29:59,758 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:29:59,759 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/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) [2018-11-18 11:29:59,803 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:29:59,804 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:59,848 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:29:59,850 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:29:59,850 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:29:59,850 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:29:59,850 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:29:59,850 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:29:59,851 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:29:59,851 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:29:59,851 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:29:59,851 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration3_Loop [2018-11-18 11:29:59,851 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:29:59,851 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:29:59,852 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:29:59,889 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:00,044 WARN L180 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-11-18 11:30:00,044 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:00,176 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:30:00,176 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:30:00,177 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:30:00,177 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:30:00,178 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:30:00,178 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:30:00,178 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:30:00,181 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:30:00,181 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:30:00,185 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:30:00,185 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:30:00,186 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:30:00,186 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:30:00,186 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:30:00,186 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:30:00,186 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:30:00,187 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:30:00,187 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:30:00,194 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:30:00,205 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:30:00,209 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 11:30:00,209 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:30:00,209 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:30:00,210 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:30:00,210 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-11-18 11:30:00,210 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:30:00,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:00,247 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:00,260 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:00,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:00,261 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 11:30:00,261 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5 Second operand 3 states. [2018-11-18 11:30:00,293 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 14 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 28 states and 34 transitions. Complement of second has 5 states. [2018-11-18 11:30:00,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 11:30:00,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:30:00,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 11:30:00,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 2 letters. [2018-11-18 11:30:00,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:00,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 6 letters. Loop has 2 letters. [2018-11-18 11:30:00,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:00,295 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 4 letters. Loop has 4 letters. [2018-11-18 11:30:00,295 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:00,296 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 34 transitions. [2018-11-18 11:30:00,297 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:30:00,297 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 19 states and 23 transitions. [2018-11-18 11:30:00,297 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 7 [2018-11-18 11:30:00,298 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2018-11-18 11:30:00,298 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 23 transitions. [2018-11-18 11:30:00,298 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 11:30:00,298 INFO L705 BuchiCegarLoop]: Abstraction has 19 states and 23 transitions. [2018-11-18 11:30:00,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states and 23 transitions. [2018-11-18 11:30:00,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2018-11-18 11:30:00,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 11:30:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 18 transitions. [2018-11-18 11:30:00,301 INFO L728 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 11:30:00,301 INFO L608 BuchiCegarLoop]: Abstraction has 15 states and 18 transitions. [2018-11-18 11:30:00,301 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-11-18 11:30:00,301 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states and 18 transitions. [2018-11-18 11:30:00,302 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-11-18 11:30:00,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 11:30:00,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 11:30:00,302 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1, 1, 1, 1, 1] [2018-11-18 11:30:00,302 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 11:30:00,303 INFO L794 eck$LassoCheckResult]: Stem: 176#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 170#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0;havoc main_~x~0;havoc main_~y~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1; 171#L9-3 assume true; 177#L9-1 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 175#L11-3 assume true; 184#L11-1 assume !((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824); 181#L11-4 main_~x~0 := main_~x~0 - 1; 178#L9-3 assume true; 179#L9-1 assume !!(main_~x~0 >= 0 && main_~y~0 > 0);main_~y~0 := 1; 173#L11-3 [2018-11-18 11:30:00,303 INFO L796 eck$LassoCheckResult]: Loop: 173#L11-3 assume true; 172#L11-1 assume !!((main_~x~0 > main_~y~0 && main_~y~0 > 0) && main_~y~0 < 1073741824);main_~y~0 := 2 * main_~y~0; 173#L11-3 [2018-11-18 11:30:00,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:00,303 INFO L82 PathProgramCache]: Analyzing trace with hash 383141811, now seen corresponding path program 2 times [2018-11-18 11:30:00,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:30:00,303 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:30:00,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:30:00,305 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:30:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:30:00,312 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:00,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1479, now seen corresponding path program 2 times [2018-11-18 11:30:00,313 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:30:00,313 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:30:00,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,316 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:30:00,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:30:00,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:30:00,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:00,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1167906567, now seen corresponding path program 1 times [2018-11-18 11:30:00,323 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 11:30:00,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 11:30:00,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,324 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-18 11:30:00,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:30:00,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:00,441 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:00,442 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 11:30:00,442 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 11:30:00,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:30:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:00,464 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:00,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:00,704 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-18 11:30:00,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2018-11-18 11:30:00,761 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:30:00,761 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:30:00,761 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:30:00,761 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:30:00,761 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 11:30:00,761 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:30:00,761 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:30:00,761 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:30:00,762 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 11:30:00,762 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:30:00,762 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:30:00,763 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:00,769 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:00,807 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:00,889 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:30:00,890 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:30:00,894 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:30:00,894 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:30:00,920 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 11:30:00,920 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_5=1} Honda state: {v_rep~unnamed0~0~true_5=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:30:00,925 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 11:30:00,925 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_320e4e7b-e5ca-47c1-a83b-85b515bc3191/bin-2019/uautomizer/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:30:00,956 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 11:30:00,956 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 11:30:00,992 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 11:30:00,994 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 11:30:00,994 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 11:30:00,994 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 11:30:00,994 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 11:30:00,994 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 11:30:00,994 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 11:30:00,994 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 11:30:00,994 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 11:30:00,995 INFO L131 ssoRankerPreferences]: Filename of dumped script: c.01_assume_true-termination_true-no-overflow.c_Iteration4_Loop [2018-11-18 11:30:00,995 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 11:30:00,995 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 11:30:00,996 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:01,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:01,020 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 11:30:01,089 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 11:30:01,089 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 11:30:01,090 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:30:01,090 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:30:01,090 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:30:01,090 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:30:01,091 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:30:01,092 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-18 11:30:01,092 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-18 11:30:01,096 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 11:30:01,097 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 11:30:01,097 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 11:30:01,097 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 11:30:01,097 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 11:30:01,098 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 11:30:01,098 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 11:30:01,098 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 11:30:01,098 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 11:30:01,107 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 11:30:01,114 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 11:30:01,114 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 11:30:01,114 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 11:30:01,114 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 11:30:01,114 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 11:30:01,115 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~y~0) = -2*ULTIMATE.start_main_~y~0 + 2147483647 Supporting invariants [] [2018-11-18 11:30:01,115 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 11:30:01,181 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,192 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:01,193 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 11:30:01,193 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 11:30:01,214 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-11-18 11:30:01,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 11:30:01,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:30:01,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 11:30:01,216 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 11:30:01,216 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:01,216 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:30:01,267 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,283 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:01,284 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 11:30:01,284 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 11:30:01,297 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 25 states and 29 transitions. Complement of second has 5 states. [2018-11-18 11:30:01,299 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 11:30:01,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:30:01,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 9 transitions. [2018-11-18 11:30:01,300 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 9 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 11:30:01,300 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:01,300 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2018-11-18 11:30:01,331 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:30:01,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,338 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:30:01,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:30:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:30:01,359 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 11:30:01,359 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6 Second operand 3 states. [2018-11-18 11:30:01,380 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states and 18 transitions. cyclomatic complexity: 6. Second operand 3 states. Result 24 states and 29 transitions. Complement of second has 4 states. [2018-11-18 11:30:01,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-18 11:30:01,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 11:30:01,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 14 transitions. [2018-11-18 11:30:01,381 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 2 letters. [2018-11-18 11:30:01,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:01,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 11 letters. Loop has 2 letters. [2018-11-18 11:30:01,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:01,382 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 14 transitions. Stem has 9 letters. Loop has 4 letters. [2018-11-18 11:30:01,382 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 11:30:01,383 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 29 transitions. [2018-11-18 11:30:01,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:30:01,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 0 states and 0 transitions. [2018-11-18 11:30:01,385 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:30:01,385 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:30:01,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:30:01,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:30:01,385 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:30:01,385 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:30:01,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 11:30:01,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 11:30:01,386 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 10 states. [2018-11-18 11:30:01,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:30:01,386 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 11:30:01,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 11:30:01,386 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 11:30:01,386 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:30:01,387 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:30:01,387 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 11:30:01,387 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 11:30:01,387 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 11:30:01,390 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 11:30:01,390 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:30:01,390 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:30:01,391 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:30:01,391 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-11-18 11:30:01,391 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:30:01,391 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 11:30:01,391 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 11:30:01,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 11:30:01 BoogieIcfgContainer [2018-11-18 11:30:01,397 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 11:30:01,397 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:30:01,397 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:30:01,398 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:30:01,398 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:29:56" (3/4) ... [2018-11-18 11:30:01,402 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:30:01,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:30:01,403 INFO L168 Benchmark]: Toolchain (without parser) took 5415.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 959.7 MB in the beginning and 912.0 MB in the end (delta: 47.7 MB). Peak memory consumption was 203.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:30:01,403 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:30:01,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:30:01,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:30:01,405 INFO L168 Benchmark]: Boogie Preprocessor took 20.91 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:30:01,405 INFO L168 Benchmark]: RCFGBuilder took 469.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 11:30:01,406 INFO L168 Benchmark]: BuchiAutomizer took 4569.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.0 MB in the end (delta: 228.6 MB). Peak memory consumption was 228.6 MB. Max. memory is 11.5 GB. [2018-11-18 11:30:01,406 INFO L168 Benchmark]: Witness Printer took 4.57 ms. Allocated memory is still 1.2 GB. Free memory is still 912.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:30:01,409 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 291.65 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.84 ms. Allocated memory is still 1.0 GB. Free memory was 948.9 MB in the beginning and 946.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.91 ms. Allocated memory is still 1.0 GB. Free memory is still 946.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 469.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 946.2 MB in the beginning and 1.1 GB in the end (delta: -197.9 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4569.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 912.0 MB in the end (delta: 228.6 MB). Peak memory consumption was 228.6 MB. Max. memory is 11.5 GB. * Witness Printer took 4.57 ms. Allocated memory is still 1.2 GB. Free memory is still 912.0 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 5 terminating modules (2 trivial, 2 deterministic, 1 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. One deterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. One nondeterministic module has affine ranking function -2 * y + 2147483647 and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 10 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.4s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 2. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 15 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 48 SDtfs, 38 SDslu, 12 SDs, 0 SdLazy, 29 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT2 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax169 hnf98 lsp58 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq142 hnf94 smp100 dnf100 smp100 tf108 neg100 sie119 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 5 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 3 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...