./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/recursive-simple/sum_20x0_false-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/recursive-simple/sum_20x0_false-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 32bit --witnessprinter.graph.data.programhash 17db2a72807ac377d533a347dbb668103ea580a0 ................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:11:06,854 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:11:06,856 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:11:06,867 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:11:06,868 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:11:06,869 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:11:06,871 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:11:06,873 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:11:06,874 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:11:06,875 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:11:06,875 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:11:06,875 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:11:06,876 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:11:06,883 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:11:06,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:11:06,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:11:06,887 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:11:06,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:11:06,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:11:06,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:11:06,895 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:11:06,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:11:06,899 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:11:06,901 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:11:06,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:11:06,902 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:11:06,903 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:11:06,904 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:11:06,904 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:11:06,907 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:11:06,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:11:06,909 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:11:06,910 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:11:06,911 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:11:06,912 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:11:06,913 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:11:06,914 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-10-27 06:11:06,927 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:11:06,927 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:11:06,930 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:11:06,931 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:11:06,932 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:11:06,932 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:11:06,932 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:11:06,932 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:11:06,932 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:11:06,932 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:11:06,933 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 06:11:06,933 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:11:06,934 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:11:06,935 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:11:06,935 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:11:06,935 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:11:06,935 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:11:06,935 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:11:06,935 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:11:06,936 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:11:06,936 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_e26d712c-4e6b-45bf-a625-428439118e66/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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17db2a72807ac377d533a347dbb668103ea580a0 [2018-10-27 06:11:06,988 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:11:07,000 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:11:07,003 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:11:07,004 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:11:07,005 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:11:07,005 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_20x0_false-unreach-call_true-termination.c [2018-10-27 06:11:07,047 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/data/2bca4b750/edd5a88729874684b921b9d479fa8637/FLAGed5c4e91f [2018-10-27 06:11:07,401 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:11:07,402 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/sv-benchmarks/c/recursive-simple/sum_20x0_false-unreach-call_true-termination.c [2018-10-27 06:11:07,407 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/data/2bca4b750/edd5a88729874684b921b9d479fa8637/FLAGed5c4e91f [2018-10-27 06:11:07,418 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/bin-2019/uautomizer/data/2bca4b750/edd5a88729874684b921b9d479fa8637 [2018-10-27 06:11:07,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:11:07,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:11:07,422 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:07,422 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:11:07,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:11:07,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,428 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de743ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07, skipping insertion in model container [2018-10-27 06:11:07,428 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:11:07,450 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:11:07,559 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:07,562 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:11:07,571 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:11:07,582 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:11:07,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07 WrapperNode [2018-10-27 06:11:07,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:11:07,583 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:07,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:11:07,583 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:11:07,591 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,609 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:11:07,610 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:11:07,610 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:11:07,610 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:11:07,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,619 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,620 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,622 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... [2018-10-27 06:11:07,624 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:11:07,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:11:07,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:11:07,625 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:11:07,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 [2018-10-27 06:11:07,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:11:07,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:11:07,744 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-10-27 06:11:07,744 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-10-27 06:11:07,968 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:11:07,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:07 BoogieIcfgContainer [2018-10-27 06:11:07,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:11:07,969 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:11:07,969 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:11:07,973 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:11:07,974 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:07,974 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:11:07" (1/3) ... [2018-10-27 06:11:07,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b918d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:07, skipping insertion in model container [2018-10-27 06:11:07,975 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:07,975 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:11:07" (2/3) ... [2018-10-27 06:11:07,975 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b918d90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:11:07, skipping insertion in model container [2018-10-27 06:11:07,976 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:11:07,976 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:07" (3/3) ... [2018-10-27 06:11:07,977 INFO L375 chiAutomizerObserver]: Analyzing ICFG sum_20x0_false-unreach-call_true-termination.c [2018-10-27 06:11:08,028 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:11:08,028 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:11:08,028 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:11:08,029 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:11:08,029 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:11:08,029 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:11:08,029 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:11:08,029 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:11:08,029 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:11:08,042 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-10-27 06:11:08,064 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:08,065 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:08,065 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:08,072 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:11:08,072 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:08,072 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:11:08,072 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-10-27 06:11:08,074 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2018-10-27 06:11:08,074 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:11:08,074 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:11:08,074 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-10-27 06:11:08,074 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:11:08,082 INFO L793 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 8#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~ret1, main_~a~0, main_~b~0, main_~result~0;main_~a~0 := 20;main_~b~0 := 0; 16#L14true call main_#t~ret1 := sum(main_~a~0, main_~b~0);< 9#sumENTRYtrue [2018-10-27 06:11:08,082 INFO L795 eck$LassoCheckResult]: Loop: 9#sumENTRYtrue ~n := #in~n;~m := #in~m; 6#L4true assume !(~n <= 0); 7#L7true call #t~ret0 := sum(~n - 1, ~m + 1);< 9#sumENTRYtrue [2018-10-27 06:11:08,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:08,087 INFO L82 PathProgramCache]: Analyzing trace with hash 29876, now seen corresponding path program 1 times [2018-10-27 06:11:08,089 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:08,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:08,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:08,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,184 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:08,185 INFO L82 PathProgramCache]: Analyzing trace with hash 44820, now seen corresponding path program 1 times [2018-10-27 06:11:08,185 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:08,186 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:08,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:08,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,200 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash 890050945, now seen corresponding path program 1 times [2018-10-27 06:11:08,202 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:11:08,202 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:11:08,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:11:08,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:11:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:11:08,421 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-27 06:11:08,541 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:08,542 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:08,542 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:08,542 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:08,542 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:11:08,542 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:08,542 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:08,543 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:08,543 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0_false-unreach-call_true-termination.c_Iteration1_Loop [2018-10-27 06:11:08,543 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:08,543 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:08,559 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,565 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,569 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,579 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,584 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,806 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:08,807 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 [2018-10-27 06:11:08,818 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:08,818 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:08,826 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:08,826 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_#res=0} Honda state: {sum_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 [2018-10-27 06:11:08,845 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:08,845 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:08,848 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:11:08,848 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {sum_~m=0} Honda state: {sum_~m=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 [2018-10-27 06:11:08,866 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:11:08,866 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e26d712c-4e6b-45bf-a625-428439118e66/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 [2018-10-27 06:11:08,890 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:11:08,890 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:11:08,910 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:11:08,911 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:11:08,911 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:11:08,912 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:11:08,912 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:11:08,912 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:11:08,912 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:11:08,912 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:11:08,912 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:11:08,912 INFO L131 ssoRankerPreferences]: Filename of dumped script: sum_20x0_false-unreach-call_true-termination.c_Iteration1_Loop [2018-10-27 06:11:08,913 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:11:08,913 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:11:08,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,937 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,945 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,953 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,955 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:08,967 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:11:09,051 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:11:09,054 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:11:09,055 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 [2018-10-27 06:11:09,057 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:09,057 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:09,057 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:09,058 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:09,058 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:09,060 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:09,060 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:09,064 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:09,064 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 [2018-10-27 06:11:09,065 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:09,065 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:09,065 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:09,065 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:09,065 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:09,066 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:09,066 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:09,067 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:11:09,068 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 [2018-10-27 06:11:09,068 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:11:09,068 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:11:09,068 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:11:09,069 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:11:09,069 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:11:09,069 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:11:09,070 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:11:09,075 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:11:09,078 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:11:09,078 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:11:09,080 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:11:09,080 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:11:09,080 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:11:09,081 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(sum_#in~n) = 1*sum_#in~n Supporting invariants [] [2018-10-27 06:11:09,082 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:11:09,193 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:11:09,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:09,236 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:09,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:11:09,270 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:11:09,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:11:09,504 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:11:09,505 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 4 states. [2018-10-27 06:11:09,620 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 4 states. Result 30 states and 35 transitions. Complement of second has 12 states. [2018-10-27 06:11:09,621 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 [2018-10-27 06:11:09,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-10-27 06:11:09,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2018-10-27 06:11:09,623 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 3 letters. [2018-10-27 06:11:09,625 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:09,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 6 letters. Loop has 3 letters. [2018-10-27 06:11:09,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:09,626 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 3 letters. Loop has 6 letters. [2018-10-27 06:11:09,626 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:11:09,627 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 35 transitions. [2018-10-27 06:11:09,630 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:11:09,633 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 0 states and 0 transitions. [2018-10-27 06:11:09,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:11:09,634 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:11:09,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:11:09,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:11:09,635 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:09,635 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:09,635 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:11:09,635 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:11:09,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:11:09,636 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:11:09,636 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:11:09,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:11:09 BoogieIcfgContainer [2018-10-27 06:11:09,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:11:09,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:11:09,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:11:09,642 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:11:09,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:11:07" (3/4) ... [2018-10-27 06:11:09,645 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:11:09,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:11:09,645 INFO L168 Benchmark]: Toolchain (without parser) took 2225.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 954.8 MB in the beginning and 1.0 GB in the end (delta: -95.0 MB). Peak memory consumption was 52.3 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:09,647 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:09,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 942.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:09,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:09,648 INFO L168 Benchmark]: Boogie Preprocessor took 14.22 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:09,649 INFO L168 Benchmark]: RCFGBuilder took 344.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:09,649 INFO L168 Benchmark]: BuchiAutomizer took 1672.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. [2018-10-27 06:11:09,650 INFO L168 Benchmark]: Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:11:09,655 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.83 ms. Allocated memory is still 1.0 GB. Free memory was 954.8 MB in the beginning and 942.9 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.82 ms. Allocated memory is still 1.0 GB. Free memory is still 942.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.22 ms. Allocated memory is still 1.0 GB. Free memory was 942.9 MB in the beginning and 940.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 344.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -197.5 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1672.41 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 87.8 MB). Peak memory consumption was 87.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function \old(n) and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.6s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 5 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 8ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...