./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 222b9e0025989dbea1cdc61cba66ae29f96b0141 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 13:27:08,985 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 13:27:08,986 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 13:27:08,994 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 13:27:08,995 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 13:27:08,995 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 13:27:08,996 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 13:27:08,997 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 13:27:08,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 13:27:08,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 13:27:09,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 13:27:09,000 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 13:27:09,000 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 13:27:09,001 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 13:27:09,002 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 13:27:09,002 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 13:27:09,003 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 13:27:09,004 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 13:27:09,005 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 13:27:09,006 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 13:27:09,007 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 13:27:09,008 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 13:27:09,009 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 13:27:09,009 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 13:27:09,010 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 13:27:09,010 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 13:27:09,011 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 13:27:09,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 13:27:09,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 13:27:09,012 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 13:27:09,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 13:27:09,013 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 13:27:09,013 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 13:27:09,013 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 13:27:09,014 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 13:27:09,014 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 13:27:09,015 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 13:27:09,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 13:27:09,023 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 13:27:09,023 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 13:27:09,024 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 13:27:09,024 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 13:27:09,024 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 13:27:09,024 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 13:27:09,024 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 13:27:09,024 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 13:27:09,025 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 13:27:09,025 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 13:27:09,026 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 13:27:09,027 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 13:27:09,027 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 13:27:09,027 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 13:27:09,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 13:27:09,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 13:27:09,027 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 13:27:09,028 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 13:27:09,028 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_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 -> 222b9e0025989dbea1cdc61cba66ae29f96b0141 [2018-11-28 13:27:09,052 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 13:27:09,061 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 13:27:09,064 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 13:27:09,065 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 13:27:09,065 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 13:27:09,066 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c [2018-11-28 13:27:09,112 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/data/64cf36ad1/323a67d947ed48b49e9919d0568ae27a/FLAG490ea4bef [2018-11-28 13:27:09,495 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 13:27:09,495 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/sv-benchmarks/c/termination-crafted-lit/Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c [2018-11-28 13:27:09,499 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/data/64cf36ad1/323a67d947ed48b49e9919d0568ae27a/FLAG490ea4bef [2018-11-28 13:27:09,509 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/data/64cf36ad1/323a67d947ed48b49e9919d0568ae27a [2018-11-28 13:27:09,511 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 13:27:09,512 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 13:27:09,513 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 13:27:09,513 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 13:27:09,515 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 13:27:09,516 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bfc91c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09, skipping insertion in model container [2018-11-28 13:27:09,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 13:27:09,533 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 13:27:09,632 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:27:09,634 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 13:27:09,644 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 13:27:09,652 INFO L195 MainTranslator]: Completed translation [2018-11-28 13:27:09,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09 WrapperNode [2018-11-28 13:27:09,652 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 13:27:09,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 13:27:09,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 13:27:09,653 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 13:27:09,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 13:27:09,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 13:27:09,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 13:27:09,675 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 13:27:09,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,689 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... [2018-11-28 13:27:09,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 13:27:09,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 13:27:09,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 13:27:09,691 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 13:27:09,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:09,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 13:27:09,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 13:27:09,890 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 13:27:09,891 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-11-28 13:27:09,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:27:09 BoogieIcfgContainer [2018-11-28 13:27:09,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 13:27:09,891 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 13:27:09,891 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 13:27:09,895 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 13:27:09,895 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:27:09,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 01:27:09" (1/3) ... [2018-11-28 13:27:09,896 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7439addb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:27:09, skipping insertion in model container [2018-11-28 13:27:09,896 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:27:09,896 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 01:27:09" (2/3) ... [2018-11-28 13:27:09,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7439addb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 01:27:09, skipping insertion in model container [2018-11-28 13:27:09,897 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 13:27:09,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:27:09" (3/3) ... [2018-11-28 13:27:09,899 INFO L375 chiAutomizerObserver]: Analyzing ICFG Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c [2018-11-28 13:27:09,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 13:27:09,952 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 13:27:09,952 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 13:27:09,952 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 13:27:09,952 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 13:27:09,952 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 13:27:09,952 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 13:27:09,952 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 13:27:09,952 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 13:27:09,965 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 13:27:09,984 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-28 13:27:09,984 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:27:09,984 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:27:09,990 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:27:09,990 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:27:09,990 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 13:27:09,990 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2018-11-28 13:27:09,991 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 2 [2018-11-28 13:27:09,991 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:27:09,991 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:27:09,992 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-11-28 13:27:09,992 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:27:09,999 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~z~0, main_~i~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~i~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := 0;main_~i~0 := main_~x~0; 10#L20true assume main_~y~0 > 0 && main_~x~0 > 0; 6#L21-2true [2018-11-28 13:27:09,999 INFO L796 eck$LassoCheckResult]: Loop: 6#L21-2true assume !!(main_~i~0 > 0);main_~i~0 := main_~i~0 - 1;main_~z~0 := 1 + main_~z~0; 6#L21-2true [2018-11-28 13:27:10,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,004 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2018-11-28 13:27:10,006 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:27:10,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:27:10,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:27:10,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,095 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2018-11-28 13:27:10,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:27:10,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:27:10,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:27:10,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,104 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,105 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2018-11-28 13:27:10,105 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:27:10,105 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:27:10,106 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:27:10,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,192 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:27:10,192 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:27:10,193 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:27:10,193 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:27:10,193 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:27:10,193 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,193 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:27:10,193 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:27:10,193 INFO L131 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:27:10,193 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:27:10,194 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:27:10,212 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,228 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,244 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,301 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:27:10,302 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,342 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:27:10,342 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_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,345 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,345 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,361 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:27:10,361 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_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,364 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,364 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:27:10,382 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,399 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:27:10,400 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:27:10,401 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:27:10,401 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:27:10,401 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:27:10,401 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:27:10,401 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,401 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:27:10,401 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:27:10,401 INFO L131 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c_Iteration1_Loop [2018-11-28 13:27:10,402 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:27:10,402 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:27:10,403 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,415 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,438 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,474 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:27:10,477 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:27:10,478 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 [2018-11-28 13:27:10,480 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:27:10,480 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:27:10,480 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:27:10,480 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:27:10,484 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:27:10,484 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:27:10,491 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:27:10,491 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 [2018-11-28 13:27:10,492 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:27:10,492 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:27:10,492 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:27:10,492 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:27:10,493 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:27:10,493 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:27:10,493 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:27:10,498 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:27:10,500 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:27:10,501 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:27:10,502 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:27:10,503 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:27:10,503 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:27:10,503 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-28 13:27:10,504 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:27:10,531 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:27:10,540 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:27:10,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:27:10,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:27:10,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:27:10,564 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 [2018-11-28 13:27:10,565 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 2 states. [2018-11-28 13:27:10,595 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 2 states. Result 28 states and 36 transitions. Complement of second has 6 states. [2018-11-28 13:27:10,595 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 [2018-11-28 13:27:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 13:27:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2018-11-28 13:27:10,598 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 1 letters. [2018-11-28 13:27:10,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:10,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 13:27:10,599 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:10,599 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 20 transitions. Stem has 2 letters. Loop has 2 letters. [2018-11-28 13:27:10,600 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:10,600 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 28 states and 36 transitions. [2018-11-28 13:27:10,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:27:10,605 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 28 states to 6 states and 8 transitions. [2018-11-28 13:27:10,606 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2018-11-28 13:27:10,606 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2018-11-28 13:27:10,606 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 8 transitions. [2018-11-28 13:27:10,607 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:27:10,607 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 8 transitions. [2018-11-28 13:27:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 8 transitions. [2018-11-28 13:27:10,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 5. [2018-11-28 13:27:10,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-28 13:27:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2018-11-28 13:27:10,624 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 13:27:10,624 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2018-11-28 13:27:10,624 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-28 13:27:10,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2018-11-28 13:27:10,625 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 13:27:10,625 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 13:27:10,625 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 13:27:10,625 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-28 13:27:10,625 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 13:27:10,626 INFO L794 eck$LassoCheckResult]: Stem: 69#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_~x~0, main_~y~0, main_~z~0, main_~i~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;havoc main_~i~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := 0;main_~i~0 := main_~x~0; 70#L20 assume main_~y~0 > 0 && main_~x~0 > 0; 72#L21-2 assume !(main_~i~0 > 0); 71#L25-1 [2018-11-28 13:27:10,626 INFO L796 eck$LassoCheckResult]: Loop: 71#L25-1 assume !!(main_~i~0 < main_~y~0);main_~i~0 := 1 + main_~i~0;main_~z~0 := main_~z~0 - 1; 71#L25-1 [2018-11-28 13:27:10,626 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,626 INFO L82 PathProgramCache]: Analyzing trace with hash 30887, now seen corresponding path program 1 times [2018-11-28 13:27:10,626 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:27:10,626 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:27:10,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,627 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:27:10,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:27:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:27:10,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 13:27:10,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 13:27:10,663 INFO L799 eck$LassoCheckResult]: stem already infeasible [2018-11-28 13:27:10,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:10,663 INFO L82 PathProgramCache]: Analyzing trace with hash 55, now seen corresponding path program 1 times [2018-11-28 13:27:10,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 13:27:10,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 13:27:10,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 13:27:10,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 13:27:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 13:27:10,684 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:27:10,684 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:27:10,684 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:27:10,685 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:27:10,685 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-28 13:27:10,685 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,685 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:27:10,685 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:27:10,685 INFO L131 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 13:27:10,685 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:27:10,685 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:27:10,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,688 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,690 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,745 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:27:10,746 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,750 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,750 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,767 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:27:10,767 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_3=0} Honda state: {v_rep~unnamed0~0~false_3=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/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 [2018-11-28 13:27:10,769 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,769 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,785 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-28 13:27:10,785 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_3=1} Honda state: {v_rep~unnamed0~0~true_3=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,787 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-28 13:27:10,787 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_5a3bc2fa-a7cb-40ac-97c0-1f9e3304b8f4/bin-2019/uautomizer/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,805 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-28 13:27:10,805 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-28 13:27:10,903 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-28 13:27:10,904 INFO L216 LassoAnalysis]: Preferences: [2018-11-28 13:27:10,904 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-28 13:27:10,904 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-28 13:27:10,904 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-28 13:27:10,904 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-28 13:27:10,904 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-28 13:27:10,904 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-28 13:27:10,904 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-28 13:27:10,905 INFO L131 ssoRankerPreferences]: Filename of dumped script: Avery-FLOPS2006-Table1_true-termination_true-no-overflow.c_Iteration2_Loop [2018-11-28 13:27:10,905 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-28 13:27:10,905 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-28 13:27:10,906 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,908 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,910 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,913 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-28 13:27:10,952 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-28 13:27:10,952 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-28 13:27:10,952 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 [2018-11-28 13:27:10,953 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:27:10,953 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:27:10,953 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:27:10,953 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:27:10,954 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:27:10,954 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:27:10,958 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:27:10,958 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 [2018-11-28 13:27:10,959 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:27:10,959 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:27:10,959 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:27:10,959 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:27:10,961 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-11-28 13:27:10,961 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-11-28 13:27:10,965 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-28 13:27:10,966 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 [2018-11-28 13:27:10,966 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-28 13:27:10,966 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-28 13:27:10,966 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-28 13:27:10,966 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-28 13:27:10,966 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-28 13:27:10,967 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-28 13:27:10,967 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-28 13:27:10,971 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-28 13:27:10,974 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-28 13:27:10,974 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-28 13:27:10,974 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-28 13:27:10,975 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-28 13:27:10,975 INFO L518 LassoAnalysis]: Proved termination. [2018-11-28 13:27:10,975 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~i~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-11-28 13:27:10,975 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-28 13:27:11,004 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 13:27:11,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:27:11,010 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:27:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 13:27:11,018 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 13:27:11,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 13:27:11,018 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 [2018-11-28 13:27:11,018 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4 Second operand 2 states. [2018-11-28 13:27:11,024 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 4. Second operand 2 states. Result 6 states and 8 transitions. Complement of second has 2 states. [2018-11-28 13:27:11,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 2 states 1 stem states 0 non-accepting loop states 1 accepting loop states [2018-11-28 13:27:11,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-28 13:27:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 5 transitions. [2018-11-28 13:27:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 1 letters. [2018-11-28 13:27:11,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 4 letters. Loop has 1 letters. [2018-11-28 13:27:11,028 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:11,028 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 2 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-28 13:27:11,029 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-28 13:27:11,030 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 6 states and 8 transitions. [2018-11-28 13:27:11,031 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:27:11,031 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 6 states to 0 states and 0 transitions. [2018-11-28 13:27:11,031 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:27:11,031 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:27:11,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:27:11,032 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:27:11,032 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:27:11,032 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:27:11,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 13:27:11,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 13:27:11,036 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 4 states. [2018-11-28 13:27:11,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 13:27:11,038 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-28 13:27:11,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 13:27:11,039 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-28 13:27:11,039 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:27:11,039 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 13:27:11,039 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-28 13:27:11,039 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-28 13:27:11,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-28 13:27:11,040 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-28 13:27:11,040 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:27:11,040 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:27:11,040 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 13:27:11,040 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-28 13:27:11,040 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-28 13:27:11,040 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-28 13:27:11,040 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-28 13:27:11,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 01:27:11 BoogieIcfgContainer [2018-11-28 13:27:11,046 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 13:27:11,047 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 13:27:11,047 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 13:27:11,047 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 13:27:11,047 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 01:27:09" (3/4) ... [2018-11-28 13:27:11,050 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 13:27:11,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 13:27:11,051 INFO L168 Benchmark]: Toolchain (without parser) took 1539.52 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 952.6 MB in the beginning and 969.2 MB in the end (delta: -16.6 MB). Peak memory consumption was 98.2 MB. Max. memory is 11.5 GB. [2018-11-28 13:27:11,053 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:27:11,053 INFO L168 Benchmark]: CACSL2BoogieTranslator took 139.82 ms. Allocated memory is still 1.0 GB. Free memory was 952.6 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:27:11,054 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.58 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:27:11,054 INFO L168 Benchmark]: Boogie Preprocessor took 15.82 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 13:27:11,054 INFO L168 Benchmark]: RCFGBuilder took 200.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 13:27:11,055 INFO L168 Benchmark]: BuchiAutomizer took 1154.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.2 MB in the end (delta: 134.4 MB). Peak memory consumption was 134.4 MB. Max. memory is 11.5 GB. [2018-11-28 13:27:11,056 INFO L168 Benchmark]: Witness Printer took 3.85 ms. Allocated memory is still 1.1 GB. Free memory is still 969.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 13:27:11,058 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 979.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 139.82 ms. Allocated memory is still 1.0 GB. Free memory was 952.6 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.58 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.82 ms. Allocated memory is still 1.0 GB. Free memory was 941.9 MB in the beginning and 939.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 200.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 939.2 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1154.93 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 969.2 MB in the end (delta: 134.4 MB). Peak memory consumption was 134.4 MB. Max. memory is 11.5 GB. * Witness Printer took 3.85 ms. Allocated memory is still 1.1 GB. Free memory is still 969.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function i and consists of 4 locations. One deterministic module has affine ranking function -1 * i + y and consists of 2 locations. 1 modules have a trivial ranking function, the largest among these consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 5 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 13 SDtfs, 13 SDslu, 3 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT1 lasso0 LassoPreprocessingBenchmarks: Lassos: inital15 mio100 ax179 hnf100 lsp37 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq160 hnf93 smp100 dnf100 smp100 tf113 neg100 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 12ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...