./Ultimate.py --spec ../../sv-benchmarks/c/Termination.prp --file ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca10e259bac305ecd55fc4a34d201bc0894aa533 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 14:03:00,057 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:03:00,058 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:03:00,064 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:03:00,064 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:03:00,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:03:00,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:03:00,067 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:03:00,068 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:03:00,068 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:03:00,069 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:03:00,069 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:03:00,070 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:03:00,070 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:03:00,071 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:03:00,071 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:03:00,071 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:03:00,072 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:03:00,074 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:03:00,075 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:03:00,075 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:03:00,076 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:03:00,077 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:03:00,077 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:03:00,077 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:03:00,077 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:03:00,078 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:03:00,078 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:03:00,079 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:03:00,080 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:03:00,080 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:03:00,080 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:03:00,080 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:03:00,080 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:03:00,081 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:03:00,082 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:03:00,082 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2018-11-18 14:03:00,090 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:03:00,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:03:00,091 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 14:03:00,091 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 14:03:00,091 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 14:03:00,091 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-18 14:03:00,091 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-18 14:03:00,091 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-18 14:03:00,092 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:03:00,092 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-18 14:03:00,093 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:03:00,094 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-18 14:03:00,094 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:03:00,094 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:03:00,094 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-18 14:03:00,094 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:03:00,094 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 14:03:00,094 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-18 14:03:00,095 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-18 14:03:00,095 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_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca10e259bac305ecd55fc4a34d201bc0894aa533 [2018-11-18 14:03:00,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:03:00,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:03:00,129 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:03:00,130 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:03:00,131 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:03:00,131 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-18 14:03:00,174 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/data/6822604d8/83e920fab5534dee97e7fb9d5ad983aa/FLAGbf0fcc4ea [2018-11-18 14:03:00,564 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:03:00,564 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/sv-benchmarks/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2018-11-18 14:03:00,568 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/data/6822604d8/83e920fab5534dee97e7fb9d5ad983aa/FLAGbf0fcc4ea [2018-11-18 14:03:00,576 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/data/6822604d8/83e920fab5534dee97e7fb9d5ad983aa [2018-11-18 14:03:00,578 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:03:00,579 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:03:00,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:03:00,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:03:00,581 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:03:00,582 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a25bbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00, skipping insertion in model container [2018-11-18 14:03:00,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:03:00,601 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:03:00,702 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:03:00,704 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:03:00,713 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:03:00,721 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:03:00,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00 WrapperNode [2018-11-18 14:03:00,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:03:00,722 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:03:00,722 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:03:00,722 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:03:00,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:03:00,741 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:03:00,741 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:03:00,742 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:03:00,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,753 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... [2018-11-18 14:03:00,754 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:03:00,754 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:03:00,754 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:03:00,754 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:03:00,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:03:00,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:03:00,942 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:03:00,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:03:00 BoogieIcfgContainer [2018-11-18 14:03:00,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:03:00,943 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-18 14:03:00,943 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-18 14:03:00,946 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-18 14:03:00,946 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:03:00,946 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 18.11 02:03:00" (1/3) ... [2018-11-18 14:03:00,947 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3db32b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:03:00, skipping insertion in model container [2018-11-18 14:03:00,948 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:03:00,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:03:00" (2/3) ... [2018-11-18 14:03:00,948 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3db32b53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 18.11 02:03:00, skipping insertion in model container [2018-11-18 14:03:00,948 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-18 14:03:00,948 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:03:00" (3/3) ... [2018-11-18 14:03:00,950 INFO L375 chiAutomizerObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i [2018-11-18 14:03:00,997 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:03:00,997 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-18 14:03:00,997 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-18 14:03:00,997 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-18 14:03:00,997 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:03:00,998 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:03:00,998 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-18 14:03:00,998 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:03:00,998 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-18 14:03:01,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-18 14:03:01,023 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 14:03:01,023 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:03:01,023 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:03:01,028 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 14:03:01,029 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 14:03:01,029 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-18 14:03:01,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 15 states. [2018-11-18 14:03:01,030 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 7 [2018-11-18 14:03:01,030 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:03:01,030 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:03:01,030 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2018-11-18 14:03:01,031 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2018-11-18 14:03:01,037 INFO L794 eck$LassoCheckResult]: Stem: 10#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 9#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 14#L13true assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 15#L16-3true [2018-11-18 14:03:01,037 INFO L796 eck$LassoCheckResult]: Loop: 15#L16-3true assume true; 3#L16-1true assume !!(main_~i~0 < main_~n~0);main_#t~post2 := main_~k~0;main_~k~0 := main_#t~post2 - 1;havoc main_#t~post2;main_~i~0 := 2 + main_~i~0; 15#L16-3true [2018-11-18 14:03:01,042 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,042 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2018-11-18 14:03:01,044 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,045 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,120 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1319, now seen corresponding path program 1 times [2018-11-18 14:03:01,120 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,120 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,126 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,126 INFO L82 PathProgramCache]: Analyzing trace with hash 28695818, now seen corresponding path program 1 times [2018-11-18 14:03:01,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,126 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,174 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:03:01,175 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:03:01,175 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:03:01,175 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:03:01,175 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:03:01,175 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,175 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:03:01,176 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:03:01,176 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-18 14:03:01,176 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:03:01,176 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:03:01,193 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,198 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,203 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,247 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:03:01,247 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,263 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:03:01,263 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:03:01,268 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:03:01,268 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,283 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:03:01,283 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:03:01,303 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:03:01,316 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2018-11-18 14:03:01,316 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~k~0=0} Honda state: {ULTIMATE.start_main_~k~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~k~0=-5}, {ULTIMATE.start_main_~k~0=4}, {ULTIMATE.start_main_~k~0=0}] Lambdas: [1, 1, 0] Nus: [0, 0] No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,331 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:03:01,331 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,350 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:03:01,350 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:03:01,445 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:03:01,446 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:03:01,447 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:03:01,447 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:03:01,447 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:03:01,447 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:03:01,447 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,447 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:03:01,447 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:03:01,447 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2018-11-18 14:03:01,447 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:03:01,447 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:03:01,448 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,450 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,452 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,494 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:03:01,498 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:03:01,499 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 14:03:01,500 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:03:01,501 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:03:01,501 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:03:01,501 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:03:01,501 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:03:01,503 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:03:01,503 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:03:01,506 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:03:01,507 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 14:03:01,507 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:03:01,507 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:03:01,507 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:03:01,507 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:03:01,508 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:03:01,508 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:03:01,508 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:03:01,512 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2018-11-18 14:03:01,512 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 14:03:01,513 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:03:01,513 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:03:01,513 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:03:01,513 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:03:01,513 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:03:01,514 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:03:01,514 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:03:01,519 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:03:01,523 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:03:01,523 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2018-11-18 14:03:01,525 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:03:01,525 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:03:01,525 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:03:01,525 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2018-11-18 14:03:01,526 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:03:01,591 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:03:01,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:03:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:03:01,609 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:03:01,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:03:01,620 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2018-11-18 14:03:01,621 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 15 states. Second operand 3 states. [2018-11-18 14:03:01,652 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 15 states.. Second operand 3 states. Result 40 states and 49 transitions. Complement of second has 5 states. [2018-11-18 14:03:01,653 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 [2018-11-18 14:03:01,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-18 14:03:01,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2018-11-18 14:03:01,656 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 3 letters. Loop has 2 letters. [2018-11-18 14:03:01,656 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:01,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 5 letters. Loop has 2 letters. [2018-11-18 14:03:01,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:01,657 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 34 transitions. Stem has 3 letters. Loop has 4 letters. [2018-11-18 14:03:01,657 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:01,658 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 40 states and 49 transitions. [2018-11-18 14:03:01,659 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:03:01,661 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 40 states to 12 states and 14 transitions. [2018-11-18 14:03:01,662 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2018-11-18 14:03:01,662 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2018-11-18 14:03:01,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 14 transitions. [2018-11-18 14:03:01,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2018-11-18 14:03:01,662 INFO L705 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-18 14:03:01,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 14 transitions. [2018-11-18 14:03:01,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-18 14:03:01,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-18 14:03:01,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2018-11-18 14:03:01,678 INFO L728 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-18 14:03:01,678 INFO L608 BuchiCegarLoop]: Abstraction has 12 states and 14 transitions. [2018-11-18 14:03:01,678 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2018-11-18 14:03:01,678 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states and 14 transitions. [2018-11-18 14:03:01,679 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2018-11-18 14:03:01,679 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-18 14:03:01,679 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-18 14:03:01,679 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2018-11-18 14:03:01,679 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2018-11-18 14:03:01,679 INFO L794 eck$LassoCheckResult]: Stem: 99#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 97#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 98#L13 assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 103#L16-3 assume true; 93#L16-1 assume !(main_~i~0 < main_~n~0); 94#L16-4 main_~j~0 := 0; 100#L21-3 [2018-11-18 14:03:01,679 INFO L796 eck$LassoCheckResult]: Loop: 100#L21-3 assume true; 101#L21-1 assume !!(main_~j~0 < (if main_~n~0 < 0 && 0 != main_~n~0 % 2 then 1 + main_~n~0 / 2 else main_~n~0 / 2));assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 104#L4 assume !(0 == __VERIFIER_assert_~cond); 102#L4-2 assume { :end_inline___VERIFIER_assert } true;main_#t~post3 := main_~k~0;main_~k~0 := main_#t~post3 - 1;havoc main_#t~post3;main_#t~post4 := main_~j~0;main_~j~0 := 1 + main_#t~post4;havoc main_#t~post4; 100#L21-3 [2018-11-18 14:03:01,680 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,680 INFO L82 PathProgramCache]: Analyzing trace with hash 889570317, now seen corresponding path program 1 times [2018-11-18 14:03:01,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1699306, now seen corresponding path program 1 times [2018-11-18 14:03:01,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:03:01,701 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:01,701 INFO L82 PathProgramCache]: Analyzing trace with hash -179909642, now seen corresponding path program 1 times [2018-11-18 14:03:01,701 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 14:03:01,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 14:03:01,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:03:01,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:03:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:03:01,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:03:01,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:03:01,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 14:03:01,771 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:03:01,771 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:03:01,771 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:03:01,771 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:03:01,771 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2018-11-18 14:03:01,771 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,772 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:03:01,772 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:03:01,772 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-18 14:03:01,772 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:03:01,772 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:03:01,773 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,777 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,793 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,795 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:01,988 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:03:01,988 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/bin-2019/uautomizer/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:01,995 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2018-11-18 14:03:01,995 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_507e60df-370c-4572-b782-4a2d8f731875/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 [2018-11-18 14:03:02,016 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2018-11-18 14:03:02,016 INFO L163 nArgumentSynthesizer]: Using integer mode. [2018-11-18 14:03:02,222 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2018-11-18 14:03:02,223 INFO L216 LassoAnalysis]: Preferences: [2018-11-18 14:03:02,224 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2018-11-18 14:03:02,224 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2018-11-18 14:03:02,224 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2018-11-18 14:03:02,224 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2018-11-18 14:03:02,224 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-11-18 14:03:02,224 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2018-11-18 14:03:02,224 INFO L130 ssoRankerPreferences]: Path of dumped script: [2018-11-18 14:03:02,224 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2018-11-18 14:03:02,224 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2018-11-18 14:03:02,224 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2018-11-18 14:03:02,225 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:02,232 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:02,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:02,238 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2018-11-18 14:03:02,355 INFO L300 LassoAnalysis]: Preprocessing complete. [2018-11-18 14:03:02,356 INFO L497 LassoAnalysis]: Using template 'affine'. [2018-11-18 14:03:02,356 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2018-11-18 14:03:02,356 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2018-11-18 14:03:02,357 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2018-11-18 14:03:02,357 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2018-11-18 14:03:02,357 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2018-11-18 14:03:02,357 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2018-11-18 14:03:02,358 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2018-11-18 14:03:02,358 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2018-11-18 14:03:02,362 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2018-11-18 14:03:02,365 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2018-11-18 14:03:02,366 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2018-11-18 14:03:02,366 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2018-11-18 14:03:02,366 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2018-11-18 14:03:02,366 INFO L518 LassoAnalysis]: Proved termination. [2018-11-18 14:03:02,366 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2018-11-18 14:03:02,367 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2018-11-18 14:03:02,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:03:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:03:02,381 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:03:02,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:03:02,384 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:03:02,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:03:02,406 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 [2018-11-18 14:03:02,406 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4 Second operand 5 states. [2018-11-18 14:03:02,445 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states and 14 transitions. cyclomatic complexity: 4. Second operand 5 states. Result 16 states and 19 transitions. Complement of second has 8 states. [2018-11-18 14:03:02,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 3 non-accepting loop states 1 accepting loop states [2018-11-18 14:03:02,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-18 14:03:02,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 11 transitions. [2018-11-18 14:03:02,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 4 letters. [2018-11-18 14:03:02,446 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:02,446 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 10 letters. Loop has 4 letters. [2018-11-18 14:03:02,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:02,447 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 11 transitions. Stem has 6 letters. Loop has 8 letters. [2018-11-18 14:03:02,447 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2018-11-18 14:03:02,447 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 16 states and 19 transitions. [2018-11-18 14:03:02,447 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:03:02,447 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 16 states to 0 states and 0 transitions. [2018-11-18 14:03:02,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 14:03:02,448 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 14:03:02,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 14:03:02,448 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:03:02,448 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:03:02,448 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:03:02,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:03:02,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:03:02,450 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2018-11-18 14:03:02,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:03:02,452 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-18 14:03:02,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:03:02,452 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2018-11-18 14:03:02,452 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:03:02,452 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:03:02,452 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2018-11-18 14:03:02,453 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2018-11-18 14:03:02,453 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2018-11-18 14:03:02,453 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2018-11-18 14:03:02,453 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:03:02,453 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:03:02,453 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:03:02,453 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2018-11-18 14:03:02,453 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:03:02,453 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2018-11-18 14:03:02,453 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2018-11-18 14:03:02,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 18.11 02:03:02 BoogieIcfgContainer [2018-11-18 14:03:02,457 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-18 14:03:02,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:03:02,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:03:02,457 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:03:02,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:03:00" (3/4) ... [2018-11-18 14:03:02,460 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:03:02,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:03:02,460 INFO L168 Benchmark]: Toolchain (without parser) took 1881.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 960.7 MB in the beginning and 951.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 164.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:03:02,461 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:03:02,462 INFO L168 Benchmark]: CACSL2BoogieTranslator took 142.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:03:02,462 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.06 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:03:02,463 INFO L168 Benchmark]: Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:03:02,463 INFO L168 Benchmark]: RCFGBuilder took 188.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:03:02,464 INFO L168 Benchmark]: BuchiAutomizer took 1514.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.7 MB in the end (delta: 187.9 MB). Peak memory consumption was 187.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:03:02,464 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 1.2 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:03:02,466 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 142.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 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 19.06 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 947.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.27 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 188.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -192.2 MB). Peak memory consumption was 14.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1514.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 951.7 MB in the end (delta: 187.9 MB). Peak memory consumption was 187.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.66 ms. Allocated memory is still 1.2 GB. Free memory is still 951.7 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 n + -1 * i and consists of 4 locations. One deterministic module has affine ranking function k and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.1s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 12 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 23 SDtfs, 25 SDslu, 12 SDs, 0 SdLazy, 13 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital31 mio100 ax100 hnf100 lsp62 ukn100 mio100 lsp100 div230 bol100 ite105 ukn100 eq143 hnf74 smp82 dnf131 smp96 tf107 neg99 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 7ms VariablesStem: 0 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.4s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...