./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.1.24-0ed9222-m [2019-01-14 03:48:45,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:48:45,632 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:48:45,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:48:45,645 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:48:45,646 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:48:45,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:48:45,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:48:45,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:48:45,653 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:48:45,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:48:45,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:48:45,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:48:45,656 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:48:45,657 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:48:45,658 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:48:45,659 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:48:45,661 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:48:45,664 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:48:45,666 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:48:45,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:48:45,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:48:45,671 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:48:45,672 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:48:45,672 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:48:45,673 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:48:45,674 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:48:45,675 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:48:45,676 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:48:45,678 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:48:45,678 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:48:45,679 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:48:45,679 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:48:45,679 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:48:45,680 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:48:45,681 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:48:45,682 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:48:45,699 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:48:45,699 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:48:45,701 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:48:45,701 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:48:45,701 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:48:45,701 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:48:45,701 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:48:45,702 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:48:45,702 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:48:45,702 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:48:45,702 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:48:45,702 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:48:45,702 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:48:45,703 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:48:45,704 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:48:45,705 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:48:45,705 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:48:45,705 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:48:45,705 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:48:45,705 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:48:45,706 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:48:45,707 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:48:45,707 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 [2019-01-14 03:48:45,750 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:48:45,763 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:48:45,767 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:48:45,768 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:48:45,769 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:48:45,770 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2019-01-14 03:48:45,835 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08028ce88/0f6a11220cb34bbca65df7d78f08f131/FLAG5439bb641 [2019-01-14 03:48:46,253 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:48:46,254 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/half_2_true-unreach-call_true-termination.i [2019-01-14 03:48:46,261 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08028ce88/0f6a11220cb34bbca65df7d78f08f131/FLAG5439bb641 [2019-01-14 03:48:46,657 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08028ce88/0f6a11220cb34bbca65df7d78f08f131 [2019-01-14 03:48:46,660 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:48:46,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:48:46,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:46,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:48:46,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:48:46,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:46" (1/1) ... [2019-01-14 03:48:46,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2359d8cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:46, skipping insertion in model container [2019-01-14 03:48:46,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:48:46" (1/1) ... [2019-01-14 03:48:46,682 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:48:46,704 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:48:46,972 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:46,977 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:48:46,997 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:48:47,020 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:48:47,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47 WrapperNode [2019-01-14 03:48:47,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:48:47,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:47,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:48:47,022 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:48:47,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:48:47,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:48:47,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:48:47,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:48:47,085 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,093 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,101 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... [2019-01-14 03:48:47,108 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:48:47,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:48:47,113 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:48:47,113 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:48:47,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:48:47,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:48:47,568 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:48:47,568 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-14 03:48:47,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:47 BoogieIcfgContainer [2019-01-14 03:48:47,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:48:47,572 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:48:47,572 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:48:47,576 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:48:47,577 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:47,578 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:48:46" (1/3) ... [2019-01-14 03:48:47,580 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25023a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:47, skipping insertion in model container [2019-01-14 03:48:47,580 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:47,580 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:48:47" (2/3) ... [2019-01-14 03:48:47,582 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25023a7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:48:47, skipping insertion in model container [2019-01-14 03:48:47,582 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:48:47,582 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:47" (3/3) ... [2019-01-14 03:48:47,585 INFO L375 chiAutomizerObserver]: Analyzing ICFG half_2_true-unreach-call_true-termination.i [2019-01-14 03:48:47,651 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:48:47,652 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:48:47,652 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:48:47,652 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:48:47,654 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:48:47,655 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:48:47,655 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:48:47,655 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:48:47,656 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:48:47,673 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-14 03:48:47,702 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-14 03:48:47,703 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:47,703 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:47,709 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:47,709 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:48:47,710 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:48:47,710 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-14 03:48:47,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 5 [2019-01-14 03:48:47,712 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:47,712 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:47,712 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:48:47,713 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 03:48:47,720 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 9#L13true assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 13#L16-2true [2019-01-14 03:48:47,721 INFO L796 eck$LassoCheckResult]: Loop: 13#L16-2true 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; 13#L16-2true [2019-01-14 03:48:47,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:47,730 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-01-14 03:48:47,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:47,734 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:47,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:47,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:47,836 INFO L82 PathProgramCache]: Analyzing trace with hash 46, now seen corresponding path program 1 times [2019-01-14 03:48:47,836 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:47,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:47,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:47,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:47,852 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2019-01-14 03:48:47,852 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:47,853 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:47,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:47,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:47,992 WARN L181 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-14 03:48:48,081 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:48:48,082 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:48:48,083 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:48:48,083 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:48:48,083 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:48:48,083 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:48:48,083 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:48:48,083 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:48:48,084 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:48:48,084 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:48:48,084 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:48:48,109 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,127 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,304 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:48:48,305 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:48,311 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:48:48,311 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:48:48,322 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:48:48,322 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:48,346 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:48:48,346 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:48,374 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:48:48,374 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:48:48,392 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:48:48,392 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 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:48,413 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:48:48,413 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:48,457 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:48:48,457 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:48:48,574 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:48:48,576 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:48:48,577 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:48:48,577 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:48:48,577 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:48:48,577 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:48:48,577 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:48:48,577 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:48:48,577 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:48:48,578 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration1_Loop [2019-01-14 03:48:48,578 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:48:48,579 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:48:48,581 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,597 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,601 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:48,986 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:48:48,991 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:48:48,993 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 [2019-01-14 03:48:48,995 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:48:48,995 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:48:48,995 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:48:48,996 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:48:48,996 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:48:48,998 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:48:48,998 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:48:49,005 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:48:49,006 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 [2019-01-14 03:48:49,007 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:48:49,007 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:48:49,007 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:48:49,007 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:48:49,007 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:48:49,008 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:48:49,008 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:48:49,010 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 03:48:49,011 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 [2019-01-14 03:48:49,011 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:48:49,011 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:48:49,012 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:48:49,012 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:48:49,012 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:48:49,014 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:48:49,014 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:48:49,021 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:48:49,029 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:48:49,029 INFO L444 ModelExtractionUtils]: 1 out of 4 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-14 03:48:49,031 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:48:49,032 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:48:49,032 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:48:49,032 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 [] [2019-01-14 03:48:49,034 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:48:49,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:49,145 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:48:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:49,163 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:48:49,163 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:48:49,176 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 [2019-01-14 03:48:49,177 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 12 states. Second operand 2 states. [2019-01-14 03:48:49,260 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 12 states.. Second operand 2 states. Result 34 states and 44 transitions. Complement of second has 5 states. [2019-01-14 03:48:49,261 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 [2019-01-14 03:48:49,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-14 03:48:49,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2019-01-14 03:48:49,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-14 03:48:49,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:49,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 3 letters. Loop has 1 letters. [2019-01-14 03:48:49,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:49,267 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 30 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-14 03:48:49,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:49,268 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 34 states and 44 transitions. [2019-01-14 03:48:49,271 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 03:48:49,275 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 34 states to 8 states and 10 transitions. [2019-01-14 03:48:49,276 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-01-14 03:48:49,276 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-01-14 03:48:49,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 10 transitions. [2019-01-14 03:48:49,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:48:49,277 INFO L706 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-01-14 03:48:49,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 10 transitions. [2019-01-14 03:48:49,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-01-14 03:48:49,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 03:48:49,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 10 transitions. [2019-01-14 03:48:49,303 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-01-14 03:48:49,303 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 10 transitions. [2019-01-14 03:48:49,303 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 03:48:49,304 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 10 transitions. [2019-01-14 03:48:49,304 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 03:48:49,304 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:48:49,305 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:48:49,305 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-14 03:48:49,305 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 03:48:49,305 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_#t~post3, main_#t~post4, main_~n~0, main_~i~0, main_~k~0, main_~j~0;havoc main_~n~0;havoc main_~i~0;havoc main_~k~0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 79#L13 assume !!(main_~n~0 <= 1000000);main_~k~0 := main_~n~0;main_~i~0 := 0; 83#L16-2 assume !(main_~i~0 < main_~n~0); 82#L16-3 main_~j~0 := 0; 81#L21-2 [2019-01-14 03:48:49,307 INFO L796 eck$LassoCheckResult]: Loop: 81#L21-2 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));__VERIFIER_assert_#in~cond := (if main_~k~0 > 0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 84#L4 assume !(0 == __VERIFIER_assert_~cond); 80#L4-2 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; 81#L21-2 [2019-01-14 03:48:49,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:49,307 INFO L82 PathProgramCache]: Analyzing trace with hash 959500, now seen corresponding path program 1 times [2019-01-14 03:48:49,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:49,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:49,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:49,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:49,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:49,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:49,320 INFO L82 PathProgramCache]: Analyzing trace with hash 57822, now seen corresponding path program 1 times [2019-01-14 03:48:49,321 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:49,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:49,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:49,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:48:49,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:49,345 INFO L82 PathProgramCache]: Analyzing trace with hash -1480278541, now seen corresponding path program 1 times [2019-01-14 03:48:49,346 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:48:49,346 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:48:49,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:48:49,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:48:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:49,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:48:49,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 03:48:49,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 03:48:49,590 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:48:49,590 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:48:49,590 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:48:49,591 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:48:49,591 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:48:49,591 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:48:49,591 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:48:49,591 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:48:49,591 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:48:49,591 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:48:49,592 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:48:49,596 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:49,658 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:49,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:49,718 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:50,114 WARN L181 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2019-01-14 03:48:50,352 WARN L181 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2019-01-14 03:48:50,641 WARN L181 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2019-01-14 03:48:50,647 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:48:50,647 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:50,655 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:48:50,655 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 03:48:50,682 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:48:50,682 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:48:50,710 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 03:48:50,712 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:48:50,712 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:48:50,712 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:48:50,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:48:50,712 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 03:48:50,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:48:50,713 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:48:50,713 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:48:50,713 INFO L131 ssoRankerPreferences]: Filename of dumped script: half_2_true-unreach-call_true-termination.i_Iteration2_Loop [2019-01-14 03:48:50,713 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:48:50,713 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:48:50,715 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:50,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:50,750 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:50,756 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 03:48:50,969 WARN L181 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 26 [2019-01-14 03:48:51,139 WARN L181 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 26 [2019-01-14 03:48:51,145 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:48:51,146 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 03:48:51,147 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 [2019-01-14 03:48:51,149 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 03:48:51,149 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 03:48:51,150 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 03:48:51,150 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 03:48:51,150 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 03:48:51,152 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 03:48:51,152 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 03:48:51,161 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 03:48:51,167 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 03:48:51,168 INFO L444 ModelExtractionUtils]: 2 out of 5 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 03:48:51,168 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 03:48:51,168 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 03:48:51,168 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 03:48:51,169 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~k~0) = 1*ULTIMATE.start_main_~k~0 Supporting invariants [] [2019-01-14 03:48:51,170 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 03:48:51,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:48:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:51,212 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:48:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 03:48:51,225 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 03:48:51,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 03:48:51,335 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 [2019-01-14 03:48:51,335 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4 Second operand 4 states. [2019-01-14 03:48:51,414 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states and 10 transitions. cyclomatic complexity: 4. Second operand 4 states. Result 11 states and 14 transitions. Complement of second has 6 states. [2019-01-14 03:48:51,415 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 [2019-01-14 03:48:51,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-01-14 03:48:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-01-14 03:48:51,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 3 letters. [2019-01-14 03:48:51,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:51,418 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 7 letters. Loop has 3 letters. [2019-01-14 03:48:51,418 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:51,419 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 6 letters. [2019-01-14 03:48:51,419 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 03:48:51,419 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 14 transitions. [2019-01-14 03:48:51,422 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:48:51,422 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-01-14 03:48:51,422 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:48:51,422 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:48:51,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:48:51,423 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:48:51,424 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:48:51,424 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:48:51,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 03:48:51,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 03:48:51,430 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 5 states. [2019-01-14 03:48:51,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 03:48:51,434 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-14 03:48:51,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-14 03:48:51,435 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-01-14 03:48:51,435 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:48:51,435 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 03:48:51,435 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 03:48:51,436 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 03:48:51,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 03:48:51,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 03:48:51,436 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:48:51,436 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:48:51,436 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 03:48:51,436 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 03:48:51,436 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 03:48:51,437 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 03:48:51,437 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 03:48:51,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:48:51 BoogieIcfgContainer [2019-01-14 03:48:51,443 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:48:51,444 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:48:51,444 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:48:51,444 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:48:51,445 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:48:47" (3/4) ... [2019-01-14 03:48:51,448 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 03:48:51,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:48:51,449 INFO L168 Benchmark]: Toolchain (without parser) took 4788.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.9 MB). Free memory was 951.4 MB in the beginning and 857.4 MB in the end (delta: 94.0 MB). Peak memory consumption was 166.9 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:51,451 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:51,452 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:51,453 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.79 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:51,454 INFO L168 Benchmark]: Boogie Preprocessor took 36.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:51,454 INFO L168 Benchmark]: RCFGBuilder took 457.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.9 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -105.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:51,457 INFO L168 Benchmark]: BuchiAutomizer took 3871.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 857.4 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. [2019-01-14 03:48:51,458 INFO L168 Benchmark]: Witness Printer took 4.79 ms. Allocated memory is still 1.1 GB. Free memory is still 857.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:48:51,463 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 357.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 49.79 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.73 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 457.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 72.9 MB). Free memory was 940.6 MB in the beginning and 1.0 GB in the end (delta: -105.7 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3871.65 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 857.4 MB in the end (delta: 189.0 MB). Peak memory consumption was 189.0 MB. Max. memory is 11.5 GB. * Witness Printer took 4.79 ms. Allocated memory is still 1.1 GB. Free memory is still 857.4 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 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 3.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. 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 8 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 17 SDtfs, 21 SDslu, 7 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 smp81 dnf130 smp98 tf107 neg99 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 13ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 1 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...