./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:07:42,976 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:07:42,977 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:07:42,988 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:07:42,988 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:07:42,989 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:07:42,990 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:07:42,991 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:07:42,993 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:07:42,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:07:42,994 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:07:42,994 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:07:42,996 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:07:42,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:07:42,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:07:42,998 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:07:42,999 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:07:43,000 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:07:43,002 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:07:43,004 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:07:43,005 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:07:43,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:07:43,008 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:07:43,008 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:07:43,008 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:07:43,009 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:07:43,010 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:07:43,011 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:07:43,012 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:07:43,013 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:07:43,013 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:07:43,014 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 06:07:43,014 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 06:07:43,014 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 06:07:43,015 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 06:07:43,016 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 06:07:43,016 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-10-27 06:07:43,029 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:07:43,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:07:43,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 06:07:43,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 06:07:43,031 INFO L133 SettingsManager]: * Use SBE=true [2018-10-27 06:07:43,031 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-10-27 06:07:43,031 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-10-27 06:07:43,032 INFO L133 SettingsManager]: * Use old map elimination=false [2018-10-27 06:07:43,032 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-10-27 06:07:43,032 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-10-27 06:07:43,032 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-10-27 06:07:43,032 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-10-27 06:07:43,033 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:07:43,034 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-10-27 06:07:43,034 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-10-27 06:07:43,034 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:07:43,034 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:07:43,034 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-10-27 06:07:43,034 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:07:43,035 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-27 06:07:43,035 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-10-27 06:07:43,037 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-10-27 06:07:43,038 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_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 -> 28b8f223b97939bdb3ffe1e6bb25bd5d633f35c4 [2018-10-27 06:07:43,065 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:07:43,075 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:07:43,078 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:07:43,079 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:07:43,080 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:07:43,080 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/../../sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-10-27 06:07:43,130 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/data/8311d424d/5a4e386063814a7ea180167cbb022e14/FLAG0dd17056b [2018-10-27 06:07:43,506 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:07:43,506 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/sv-benchmarks/c/termination-restricted-15/b.15_true-termination_true-no-overflow.c [2018-10-27 06:07:43,511 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/data/8311d424d/5a4e386063814a7ea180167cbb022e14/FLAG0dd17056b [2018-10-27 06:07:43,523 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/data/8311d424d/5a4e386063814a7ea180167cbb022e14 [2018-10-27 06:07:43,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:07:43,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 06:07:43,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:07:43,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:07:43,532 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:07:43,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49b90395 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43, skipping insertion in model container [2018-10-27 06:07:43,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:07:43,564 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:07:43,682 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:07:43,684 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:07:43,697 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:07:43,707 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:07:43,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43 WrapperNode [2018-10-27 06:07:43,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:07:43,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:07:43,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:07:43,709 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:07:43,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,740 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:07:43,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:07:43,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:07:43,741 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:07:43,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... [2018-10-27 06:07:43,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:07:43,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:07:43,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:07:43,761 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:07:43,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:43,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:07:43,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:07:44,097 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:07:44,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:07:44 BoogieIcfgContainer [2018-10-27 06:07:44,098 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:07:44,098 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-10-27 06:07:44,099 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-10-27 06:07:44,101 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-10-27 06:07:44,102 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:07:44,102 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.10 06:07:43" (1/3) ... [2018-10-27 06:07:44,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c05168d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:07:44, skipping insertion in model container [2018-10-27 06:07:44,103 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:07:44,103 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:07:43" (2/3) ... [2018-10-27 06:07:44,103 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c05168d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.10 06:07:44, skipping insertion in model container [2018-10-27 06:07:44,103 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-10-27 06:07:44,104 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:07:44" (3/3) ... [2018-10-27 06:07:44,105 INFO L375 chiAutomizerObserver]: Analyzing ICFG b.15_true-termination_true-no-overflow.c [2018-10-27 06:07:44,163 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 06:07:44,164 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-10-27 06:07:44,164 INFO L375 BuchiCegarLoop]: Hoare is false [2018-10-27 06:07:44,164 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-10-27 06:07:44,164 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:07:44,164 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:07:44,164 INFO L379 BuchiCegarLoop]: Difference is false [2018-10-27 06:07:44,164 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:07:44,165 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-10-27 06:07:44,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:07:44,200 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-10-27 06:07:44,200 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:07:44,200 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:07:44,207 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:07:44,207 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:07:44,207 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-10-27 06:07:44,208 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2018-10-27 06:07:44,209 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-10-27 06:07:44,209 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:07:44,209 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:07:44,209 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:07:44,209 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2018-10-27 06:07:44,218 INFO L793 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 3#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 11#L13-4true [2018-10-27 06:07:44,219 INFO L795 eck$LassoCheckResult]: Loop: 11#L13-4true assume true; 6#L12-1true assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 4#L13-3true assume !true; 11#L13-4true [2018-10-27 06:07:44,225 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,225 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2018-10-27 06:07:44,227 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,228 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:44,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,322 INFO L82 PathProgramCache]: Analyzing trace with hash 35953, now seen corresponding path program 1 times [2018-10-27 06:07:44,322 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,322 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,324 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:44,324 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:44,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:07:44,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:07:44,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-10-27 06:07:44,365 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:07:44,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 06:07:44,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 06:07:44,383 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 2 states. [2018-10-27 06:07:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:07:44,390 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-10-27 06:07:44,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 06:07:44,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 10 states and 11 transitions. [2018-10-27 06:07:44,393 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-10-27 06:07:44,397 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 10 states to 6 states and 7 transitions. [2018-10-27 06:07:44,398 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2018-10-27 06:07:44,398 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-10-27 06:07:44,399 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 7 transitions. [2018-10-27 06:07:44,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:07:44,400 INFO L705 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-10-27 06:07:44,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states and 7 transitions. [2018-10-27 06:07:44,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-10-27 06:07:44,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-10-27 06:07:44,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-10-27 06:07:44,428 INFO L728 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-10-27 06:07:44,428 INFO L608 BuchiCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-10-27 06:07:44,428 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-10-27 06:07:44,428 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states and 7 transitions. [2018-10-27 06:07:44,429 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-10-27 06:07:44,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:07:44,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:07:44,429 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:07:44,429 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-10-27 06:07:44,430 INFO L793 eck$LassoCheckResult]: Stem: 32#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 28#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 29#L13-4 [2018-10-27 06:07:44,430 INFO L795 eck$LassoCheckResult]: Loop: 29#L13-4 assume true; 33#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 30#L13-3 assume true; 31#L13-1 assume !(main_~y~0 > main_~z~0); 29#L13-4 [2018-10-27 06:07:44,430 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,430 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2018-10-27 06:07:44,430 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,431 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:44,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,439 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1114315, now seen corresponding path program 1 times [2018-10-27 06:07:44,439 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,441 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:07:44,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:44,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:07:44,525 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:07:44,525 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 06:07:44,525 INFO L810 eck$LassoCheckResult]: loop already infeasible [2018-10-27 06:07:44,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:07:44,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:07:44,526 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. cyclomatic complexity: 2 Second operand 3 states. [2018-10-27 06:07:44,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:07:44,574 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2018-10-27 06:07:44,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:07:44,575 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2018-10-27 06:07:44,575 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:07:44,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 8 states and 9 transitions. [2018-10-27 06:07:44,576 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2018-10-27 06:07:44,576 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 8 [2018-10-27 06:07:44,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 9 transitions. [2018-10-27 06:07:44,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:07:44,576 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-10-27 06:07:44,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 9 transitions. [2018-10-27 06:07:44,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-10-27 06:07:44,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-10-27 06:07:44,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-10-27 06:07:44,578 INFO L728 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-10-27 06:07:44,578 INFO L608 BuchiCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-10-27 06:07:44,578 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-10-27 06:07:44,578 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 9 transitions. [2018-10-27 06:07:44,579 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 6 [2018-10-27 06:07:44,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:07:44,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:07:44,579 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2018-10-27 06:07:44,581 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [2, 1, 1, 1, 1] [2018-10-27 06:07:44,581 INFO L793 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 48#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 49#L13-4 [2018-10-27 06:07:44,582 INFO L795 eck$LassoCheckResult]: Loop: 49#L13-4 assume true; 53#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 50#L13-3 assume true; 51#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 54#L13-3 assume true; 55#L13-1 assume !(main_~y~0 > main_~z~0); 49#L13-4 [2018-10-27 06:07:44,582 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,582 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2018-10-27 06:07:44,582 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,582 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:44,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,589 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,589 INFO L82 PathProgramCache]: Analyzing trace with hash 1070859153, now seen corresponding path program 1 times [2018-10-27 06:07:44,590 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,591 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-10-27 06:07:44,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:44,604 INFO L82 PathProgramCache]: Analyzing trace with hash 150908371, now seen corresponding path program 1 times [2018-10-27 06:07:44,604 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:44,604 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:44,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:44,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:44,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:44,799 WARN L179 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-10-27 06:07:44,844 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:07:44,845 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:07:44,846 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:07:44,846 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:07:44,846 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:07:44,846 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:44,846 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:07:44,847 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:07:44,847 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:07:44,847 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:07:44,847 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:07:44,868 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:44,887 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:44,892 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:45,080 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-10-27 06:07:45,237 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:07:45,238 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:45,242 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:45,242 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:45,267 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:07:45,267 INFO L446 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_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:45,272 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:45,272 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:45,292 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:07:45,292 INFO L446 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_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:45,295 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:45,295 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:45,322 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:07:45,323 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:45,741 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:07:45,743 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:07:45,743 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:07:45,743 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:07:45,743 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:07:45,743 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:07:45,744 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:45,744 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:07:45,744 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:07:45,744 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration3_Loop [2018-10-27 06:07:45,744 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:07:45,745 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:07:45,746 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:45,778 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:45,780 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:45,997 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:07:46,001 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:07:46,002 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:46,003 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:46,004 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:46,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:46,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:46,007 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:07:46,008 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:07:46,014 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:07:46,014 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:46,015 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:46,015 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:46,015 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:46,015 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:46,017 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:07:46,017 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:07:46,027 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:07:46,028 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:46,028 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:46,029 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:07:46,029 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:46,029 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:46,029 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:46,030 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:07:46,030 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:07:46,046 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:07:46,054 INFO L443 ModelExtractionUtils]: Simplification made 4 calls to the SMT solver. [2018-10-27 06:07:46,054 INFO L444 ModelExtractionUtils]: 1 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:07:46,056 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:07:46,057 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:07:46,057 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:07:46,057 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~x~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2018-10-27 06:07:46,059 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:07:46,119 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:46,126 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:07:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:46,136 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:07:46,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:07:46,207 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 3 loop predicates [2018-10-27 06:07:46,208 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2 Second operand 5 states. [2018-10-27 06:07:46,250 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 9 transitions. cyclomatic complexity: 2. Second operand 5 states. Result 18 states and 22 transitions. Complement of second has 6 states. [2018-10-27 06:07:46,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2018-10-27 06:07:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-10-27 06:07:46,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 11 transitions. [2018-10-27 06:07:46,253 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 6 letters. [2018-10-27 06:07:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:46,255 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 8 letters. Loop has 6 letters. [2018-10-27 06:07:46,255 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:46,256 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 11 transitions. Stem has 2 letters. Loop has 12 letters. [2018-10-27 06:07:46,257 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:46,257 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 18 states and 22 transitions. [2018-10-27 06:07:46,258 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:07:46,259 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 18 states to 13 states and 15 transitions. [2018-10-27 06:07:46,259 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2018-10-27 06:07:46,260 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2018-10-27 06:07:46,260 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 15 transitions. [2018-10-27 06:07:46,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-10-27 06:07:46,260 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 15 transitions. [2018-10-27 06:07:46,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 15 transitions. [2018-10-27 06:07:46,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2018-10-27 06:07:46,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-10-27 06:07:46,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-10-27 06:07:46,261 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-10-27 06:07:46,261 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-10-27 06:07:46,262 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2018-10-27 06:07:46,262 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2018-10-27 06:07:46,262 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2018-10-27 06:07:46,262 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-10-27 06:07:46,262 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-10-27 06:07:46,263 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 1, 1, 1, 1, 1] [2018-10-27 06:07:46,263 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-10-27 06:07:46,263 INFO L793 eck$LassoCheckResult]: Stem: 128#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 122#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~c~0, main_~x~0, main_~y~0, main_~z~0;havoc main_~c~0;havoc main_~x~0;havoc main_~y~0;havoc main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~c~0 := 0; 123#L13-4 assume true; 129#L12-1 assume !!(main_~x~0 == main_~y~0 && main_~x~0 > main_~z~0); 126#L13-3 assume true; 127#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 130#L13-3 assume true; 125#L13-1 [2018-10-27 06:07:46,263 INFO L795 eck$LassoCheckResult]: Loop: 125#L13-1 assume !!(main_~y~0 > main_~z~0);main_~x~0 := main_~x~0 - 1;main_~y~0 := main_~y~0 - 1; 124#L13-3 assume true; 125#L13-1 [2018-10-27 06:07:46,263 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:46,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1805983329, now seen corresponding path program 1 times [2018-10-27 06:07:46,263 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:46,263 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:46,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:46,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:46,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1659, now seen corresponding path program 1 times [2018-10-27 06:07:46,274 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:46,274 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:46,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:46,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:46,281 INFO L82 PathProgramCache]: Analyzing trace with hash 383192283, now seen corresponding path program 2 times [2018-10-27 06:07:46,281 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-27 06:07:46,281 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-27 06:07:46,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:07:46,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:07:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 06:07:46,311 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:07:46,311 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:07:46,311 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:07:46,311 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:07:46,311 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-10-27 06:07:46,311 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:46,311 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:07:46,312 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:07:46,312 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:07:46,312 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:07:46,312 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:07:46,313 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:46,328 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:46,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:46,335 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:46,688 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 06:07:46,765 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:07:46,765 INFO L410 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 [2018-10-27 06:07:46,778 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:46,778 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:46,805 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:07:46,805 INFO L446 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_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 [2018-10-27 06:07:46,809 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:46,810 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:46,829 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:07:46,829 INFO L446 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_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 [2018-10-27 06:07:46,833 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:46,834 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/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 [2018-10-27 06:07:46,859 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:07:46,859 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:46,870 INFO L443 LassoAnalysis]: Proved nontermination for one component. [2018-10-27 06:07:46,870 INFO L446 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-4}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=3}] Lambdas: [1, 8, 1] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:46,889 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-10-27 06:07:46,889 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_dbd171fa-587a-46d3-9ea3-6d17fee8fa26/bin-2019/uautomizer/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:46,911 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-10-27 06:07:46,911 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-10-27 06:07:47,146 INFO L450 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-10-27 06:07:47,148 INFO L214 LassoAnalysis]: Preferences: [2018-10-27 06:07:47,148 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-10-27 06:07:47,148 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-10-27 06:07:47,148 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-10-27 06:07:47,148 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-10-27 06:07:47,148 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-10-27 06:07:47,149 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-10-27 06:07:47,149 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-10-27 06:07:47,149 INFO L131 ssoRankerPreferences]: Filename of dumped script: b.15_true-termination_true-no-overflow.c_Iteration4_Loop [2018-10-27 06:07:47,149 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-10-27 06:07:47,149 INFO L280 LassoAnalysis]: Starting lasso preprocessing... [2018-10-27 06:07:47,150 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:47,157 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:47,159 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:47,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-10-27 06:07:47,234 INFO L298 LassoAnalysis]: Preprocessing complete. [2018-10-27 06:07:47,234 INFO L496 LassoAnalysis]: Using template 'affine'. [2018-10-27 06:07:47,234 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:47,235 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:47,235 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:47,236 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:47,236 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:47,237 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:07:47,237 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:07:47,242 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:07:47,243 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:47,243 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:47,243 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:47,243 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:47,244 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:47,245 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2018-10-27 06:07:47,245 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2018-10-27 06:07:47,251 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:07:47,253 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:47,254 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:47,254 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:07:47,254 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:47,254 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:47,254 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:47,255 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:07:47,255 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:07:47,261 INFO L529 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-10-27 06:07:47,261 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-10-27 06:07:47,262 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-10-27 06:07:47,262 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-10-27 06:07:47,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-10-27 06:07:47,263 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-10-27 06:07:47,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-10-27 06:07:47,263 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-10-27 06:07:47,264 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-10-27 06:07:47,271 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-10-27 06:07:47,273 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-10-27 06:07:47,274 INFO L444 ModelExtractionUtils]: 0 out of 4 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-10-27 06:07:47,274 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-10-27 06:07:47,274 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-10-27 06:07:47,274 INFO L517 LassoAnalysis]: Proved termination. [2018-10-27 06:07:47,275 INFO L519 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0, ULTIMATE.start_main_~y~0) = -1*ULTIMATE.start_main_~z~0 + 1*ULTIMATE.start_main_~y~0 Supporting invariants [] [2018-10-27 06:07:47,275 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-10-27 06:07:47,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:07:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:47,295 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:07:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:07:47,302 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:07:47,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:07:47,312 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2018-10-27 06:07:47,312 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 3 states. [2018-10-27 06:07:47,325 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 4 states. [2018-10-27 06:07:47,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2018-10-27 06:07:47,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-10-27 06:07:47,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 12 transitions. [2018-10-27 06:07:47,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 2 letters. [2018-10-27 06:07:47,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:47,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 9 letters. Loop has 2 letters. [2018-10-27 06:07:47,327 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:47,327 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 12 transitions. Stem has 7 letters. Loop has 4 letters. [2018-10-27 06:07:47,328 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-10-27 06:07:47,328 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2018-10-27 06:07:47,330 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:07:47,330 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2018-10-27 06:07:47,330 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-10-27 06:07:47,330 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-10-27 06:07:47,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-10-27 06:07:47,331 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-10-27 06:07:47,331 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:07:47,331 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:07:47,331 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 06:07:47,331 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2018-10-27 06:07:47,331 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-10-27 06:07:47,331 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-10-27 06:07:47,332 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-10-27 06:07:47,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.10 06:07:47 BoogieIcfgContainer [2018-10-27 06:07:47,337 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-10-27 06:07:47,338 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 06:07:47,338 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 06:07:47,338 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 06:07:47,339 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:07:44" (3/4) ... [2018-10-27 06:07:47,343 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 06:07:47,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 06:07:47,344 INFO L168 Benchmark]: Toolchain (without parser) took 3818.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 954.5 MB in the beginning and 969.5 MB in the end (delta: -15.0 MB). Peak memory consumption was 143.3 MB. Max. memory is 11.5 GB. [2018-10-27 06:07:47,345 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:07:47,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 180.52 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:07:47,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.80 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:07:47,346 INFO L168 Benchmark]: Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:07:47,347 INFO L168 Benchmark]: RCFGBuilder took 337.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-10-27 06:07:47,349 INFO L168 Benchmark]: BuchiAutomizer took 3239.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.5 MB in the end (delta: 176.7 MB). Peak memory consumption was 176.7 MB. Max. memory is 11.5 GB. [2018-10-27 06:07:47,350 INFO L168 Benchmark]: Witness Printer took 5.36 ms. Allocated memory is still 1.2 GB. Free memory is still 969.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 06:07:47,353 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 180.52 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.7 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 31.80 ms. Allocated memory is still 1.0 GB. Free memory is still 943.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.48 ms. Allocated memory is still 1.0 GB. Free memory was 943.7 MB in the beginning and 941.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 337.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.3 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -205.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3239.09 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 969.5 MB in the end (delta: 176.7 MB). Peak memory consumption was 176.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.36 ms. Allocated memory is still 1.2 GB. Free memory is still 969.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (2 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -1 * z + x and consists of 4 locations. One deterministic module has affine ranking function -1 * z + y and consists of 3 locations. 2 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.1s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 3. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/2 HoareTripleCheckerStatistics: 28 SDtfs, 13 SDslu, 9 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI2 SFLT2 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital18 mio100 ax167 hnf98 lsp50 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq168 hnf92 smp92 dnf100 smp100 tf110 neg100 sie109 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 11ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.8s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...