./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/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 5b51e497bfccbe41f125b1047cdc66303f76f609 ................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 08:27:49,939 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 08:27:49,940 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 08:27:49,946 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 08:27:49,946 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 08:27:49,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 08:27:49,948 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 08:27:49,949 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 08:27:49,950 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 08:27:49,951 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 08:27:49,951 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 08:27:49,951 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 08:27:49,952 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 08:27:49,953 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 08:27:49,953 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 08:27:49,954 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 08:27:49,954 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 08:27:49,955 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 08:27:49,956 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 08:27:49,957 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 08:27:49,958 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 08:27:49,959 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 08:27:49,961 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 08:27:49,961 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 08:27:49,961 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 08:27:49,961 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 08:27:49,962 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 08:27:49,962 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 08:27:49,963 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 08:27:49,963 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 08:27:49,963 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 08:27:49,964 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 08:27:49,964 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 08:27:49,964 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 08:27:49,965 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 08:27:49,965 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 08:27:49,965 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-23 08:27:49,974 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 08:27:49,974 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 08:27:49,975 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 08:27:49,975 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 08:27:49,975 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 08:27:49,975 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-23 08:27:49,975 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-23 08:27:49,975 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-23 08:27:49,976 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 08:27:49,976 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 08:27:49,977 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-23 08:27:49,978 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 08:27:49,978 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 08:27:49,978 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-23 08:27:49,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 08:27:49,978 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 08:27:49,978 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-23 08:27:49,979 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-23 08:27:49,979 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_71aea44c-bc1f-4772-98b5-134bd4aed838/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 -> 5b51e497bfccbe41f125b1047cdc66303f76f609 [2018-11-23 08:27:50,002 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 08:27:50,011 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 08:27:50,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 08:27:50,015 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 08:27:50,015 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 08:27:50,015 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c [2018-11-23 08:27:50,055 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/data/90e99ace2/9ac89c3f46434d5ab815be062a8e1cde/FLAGffefb1cea [2018-11-23 08:27:50,389 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 08:27:50,390 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/sv-benchmarks/c/termination-restricted-15/DivMinus_true-termination_true-no-overflow.c [2018-11-23 08:27:50,394 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/data/90e99ace2/9ac89c3f46434d5ab815be062a8e1cde/FLAGffefb1cea [2018-11-23 08:27:50,820 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/data/90e99ace2/9ac89c3f46434d5ab815be062a8e1cde [2018-11-23 08:27:50,823 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 08:27:50,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 08:27:50,824 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 08:27:50,824 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 08:27:50,826 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 08:27:50,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d553a98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50, skipping insertion in model container [2018-11-23 08:27:50,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 08:27:50,845 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 08:27:50,948 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:27:50,950 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 08:27:50,958 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 08:27:50,966 INFO L195 MainTranslator]: Completed translation [2018-11-23 08:27:50,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50 WrapperNode [2018-11-23 08:27:50,967 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 08:27:50,967 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 08:27:50,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 08:27:50,967 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 08:27:50,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 08:27:50,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 08:27:50,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 08:27:50,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 08:27:50,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,991 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,992 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... [2018-11-23 08:27:50,995 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 08:27:50,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 08:27:50,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 08:27:50,996 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 08:27:50,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 08:27:51,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 08:27:51,140 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 08:27:51,140 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-23 08:27:51,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:51 BoogieIcfgContainer [2018-11-23 08:27:51,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 08:27:51,141 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-23 08:27:51,141 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-23 08:27:51,144 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-23 08:27:51,145 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:27:51,145 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 08:27:50" (1/3) ... [2018-11-23 08:27:51,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36d99671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:27:51, skipping insertion in model container [2018-11-23 08:27:51,146 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:27:51,146 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:27:50" (2/3) ... [2018-11-23 08:27:51,146 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@36d99671 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 08:27:51, skipping insertion in model container [2018-11-23 08:27:51,147 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-23 08:27:51,147 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:51" (3/3) ... [2018-11-23 08:27:51,148 INFO L375 chiAutomizerObserver]: Analyzing ICFG DivMinus_true-termination_true-no-overflow.c [2018-11-23 08:27:51,186 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 08:27:51,186 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-23 08:27:51,187 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-23 08:27:51,187 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-23 08:27:51,187 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 08:27:51,187 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 08:27:51,187 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-23 08:27:51,187 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 08:27:51,187 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-23 08:27:51,196 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-23 08:27:51,208 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:27:51,208 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:27:51,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:27:51,213 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:27:51,213 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:27:51,213 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-23 08:27:51,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-23 08:27:51,214 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-23 08:27:51,214 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-23 08:27:51,214 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-23 08:27:51,214 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-23 08:27:51,214 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-23 08:27:51,219 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~res~0;havoc main_~x~0;havoc main_~y~0;havoc main_~res~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~res~0 := 0; 5#L13-2true [2018-11-23 08:27:51,219 INFO L796 eck$LassoCheckResult]: Loop: 5#L13-2true assume !!(main_~x~0 >= main_~y~0 && main_~y~0 > 0);main_~x~0 := main_~x~0 - main_~y~0;main_~res~0 := 1 + main_~res~0; 5#L13-2true [2018-11-23 08:27:51,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:27:51,223 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-23 08:27:51,224 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:27:51,224 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:27:51,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,264 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:27:51,264 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:27:51,286 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-23 08:27:51,286 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:27:51,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:27:51,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:27:51,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:27:51,295 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-23 08:27:51,295 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 08:27:51,295 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 08:27:51,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 08:27:51,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 08:27:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 08:27:51,342 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:27:51,342 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:27:51,343 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:27:51,343 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:27:51,343 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-23 08:27:51,343 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,343 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:27:51,343 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:27:51,343 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:27:51,343 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:27:51,344 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:27:51,366 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,377 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,379 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,487 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:27:51,488 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,499 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:27:51,499 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:27:51,522 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:27:51,522 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_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,524 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:27:51,525 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:27:51,539 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:27:51,540 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_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,542 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:27:51,542 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,559 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:27:51,559 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:27:51,569 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-23 08:27:51,569 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~res~0=0} Honda state: {ULTIMATE.start_main_~res~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~res~0=7}, {ULTIMATE.start_main_~res~0=-7}, {ULTIMATE.start_main_~res~0=1}] Lambdas: [2, 1, 1] Nus: [1, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,584 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-23 08:27:51,584 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71aea44c-bc1f-4772-98b5-134bd4aed838/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,604 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-23 08:27:51,604 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-23 08:27:51,677 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-23 08:27:51,679 INFO L216 LassoAnalysis]: Preferences: [2018-11-23 08:27:51,679 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-23 08:27:51,679 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-23 08:27:51,679 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-23 08:27:51,679 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-23 08:27:51,679 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-23 08:27:51,679 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-23 08:27:51,679 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-23 08:27:51,679 INFO L131 ssoRankerPreferences]: Filename of dumped script: DivMinus_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-23 08:27:51,679 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-23 08:27:51,679 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-23 08:27:51,680 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,685 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,687 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-23 08:27:51,773 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-23 08:27:51,776 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-23 08:27:51,777 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:27:51,778 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:27:51,779 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:27:51,779 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:27:51,779 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:27:51,782 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:27:51,782 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:27:51,788 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:27:51,788 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:27:51,789 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:27:51,789 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:27:51,789 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:27:51,789 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:27:51,791 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-23 08:27:51,791 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-23 08:27:51,796 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:27:51,797 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:27:51,797 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:27:51,797 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:27:51,798 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:27:51,798 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:27:51,798 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:27:51,798 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:27:51,798 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:27:51,801 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-23 08:27:51,801 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-23 08:27:51,802 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-23 08:27:51,802 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-23 08:27:51,802 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-23 08:27:51,802 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-23 08:27:51,802 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-23 08:27:51,803 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-23 08:27:51,803 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-23 08:27:51,808 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-23 08:27:51,812 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-23 08:27:51,813 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 2 variables to zero. [2018-11-23 08:27:51,814 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-23 08:27:51,814 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-23 08:27:51,814 INFO L518 LassoAnalysis]: Proved termination. [2018-11-23 08:27:51,815 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-11-23 08:27:51,815 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-23 08:27:51,844 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 08:27:51,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:27:51,852 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:27:51,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 08:27:51,860 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 08:27:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 08:27:51,869 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-23 08:27:51,870 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 6 states. Second operand 2 states. [2018-11-23 08:27:51,891 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 6 states.. Second operand 2 states. Result 15 states and 18 transitions. Complement of second has 5 states. [2018-11-23 08:27:51,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-11-23 08:27:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-23 08:27:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-23 08:27:51,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 1 letters. [2018-11-23 08:27:51,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:27:51,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-23 08:27:51,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:27:51,894 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 10 transitions. Stem has 1 letters. Loop has 2 letters. [2018-11-23 08:27:51,894 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-23 08:27:51,895 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 18 transitions. [2018-11-23 08:27:51,896 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:27:51,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2018-11-23 08:27:51,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-23 08:27:51,899 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-23 08:27:51,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-23 08:27:51,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-23 08:27:51,899 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:27:51,900 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:27:51,900 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 08:27:51,900 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-23 08:27:51,900 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-23 08:27:51,900 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-23 08:27:51,900 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-23 08:27:51,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 08:27:51 BoogieIcfgContainer [2018-11-23 08:27:51,904 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-23 08:27:51,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 08:27:51,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 08:27:51,904 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 08:27:51,905 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:27:51" (3/4) ... [2018-11-23 08:27:51,907 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 08:27:51,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 08:27:51,907 INFO L168 Benchmark]: Toolchain (without parser) took 1084.53 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 958.2 MB in the beginning and 1.0 GB in the end (delta: -73.0 MB). Peak memory consumption was 56.5 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,908 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:27:51,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.93 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,909 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.57 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,910 INFO L168 Benchmark]: Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 08:27:51,910 INFO L168 Benchmark]: RCFGBuilder took 145.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,911 INFO L168 Benchmark]: BuchiAutomizer took 762.63 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: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,911 INFO L168 Benchmark]: Witness Printer took 2.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 08:27:51,914 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.93 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.57 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.53 ms. Allocated memory is still 1.0 GB. Free memory is still 944.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 145.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -174.2 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 762.63 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: 85.1 MB). Peak memory consumption was 85.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. 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 x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. 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: 4 SDtfs, 4 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax160 hnf93 lsp43 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...