./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-15/cstrlen_reverse_alloca_true-termination.c.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa 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/termination-15/cstrlen_reverse_alloca_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash c00c2eb0cef5f2e9aa4da3a7cbfbf681617d72f6 ...................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 22:03:42,593 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 22:03:42,595 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 22:03:42,607 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 22:03:42,608 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 22:03:42,609 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 22:03:42,610 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 22:03:42,612 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 22:03:42,614 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 22:03:42,614 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 22:03:42,615 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 22:03:42,616 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 22:03:42,617 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 22:03:42,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 22:03:42,619 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 22:03:42,619 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 22:03:42,620 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 22:03:42,622 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 22:03:42,624 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 22:03:42,626 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 22:03:42,627 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 22:03:42,628 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 22:03:42,631 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 22:03:42,631 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 22:03:42,632 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 22:03:42,633 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 22:03:42,634 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 22:03:42,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 22:03:42,635 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 22:03:42,637 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 22:03:42,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 22:03:42,638 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 22:03:42,638 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 22:03:42,638 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 22:03:42,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 22:03:42,640 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 22:03:42,640 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-01 22:03:42,681 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 22:03:42,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 22:03:42,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 22:03:42,690 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 22:03:42,690 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 22:03:42,690 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 22:03:42,691 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 22:03:42,691 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 22:03:42,691 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 22:03:42,691 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 22:03:42,691 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 22:03:42,692 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 22:03:42,692 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 22:03:42,692 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 22:03:42,692 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 22:03:42,692 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 22:03:42,692 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 22:03:42,693 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 22:03:42,695 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 22:03:42,695 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 22:03:42,696 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 22:03:42,696 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 22:03:42,696 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 22:03:42,696 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 22:03:42,696 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 22:03:42,697 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 22:03:42,697 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 22:03:42,697 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 22:03:42,701 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 22:03:42,702 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c00c2eb0cef5f2e9aa4da3a7cbfbf681617d72f6 [2019-01-01 22:03:42,761 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 22:03:42,777 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 22:03:42,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 22:03:42,784 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 22:03:42,784 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 22:03:42,786 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-15/cstrlen_reverse_alloca_true-termination.c.i [2019-01-01 22:03:42,842 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f487fad/a78eb133708d4482a25d38e5c5def00a/FLAG0d39e0360 [2019-01-01 22:03:43,338 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 22:03:43,339 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-15/cstrlen_reverse_alloca_true-termination.c.i [2019-01-01 22:03:43,350 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f487fad/a78eb133708d4482a25d38e5c5def00a/FLAG0d39e0360 [2019-01-01 22:03:43,635 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89f487fad/a78eb133708d4482a25d38e5c5def00a [2019-01-01 22:03:43,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 22:03:43,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 22:03:43,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 22:03:43,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 22:03:43,646 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 22:03:43,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:03:43" (1/1) ... [2019-01-01 22:03:43,650 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32b06401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:43, skipping insertion in model container [2019-01-01 22:03:43,650 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:03:43" (1/1) ... [2019-01-01 22:03:43,659 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 22:03:43,706 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 22:03:44,150 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:03:44,167 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 22:03:44,235 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:03:44,386 INFO L195 MainTranslator]: Completed translation [2019-01-01 22:03:44,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44 WrapperNode [2019-01-01 22:03:44,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 22:03:44,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 22:03:44,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 22:03:44,388 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 22:03:44,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 22:03:44,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 22:03:44,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 22:03:44,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 22:03:44,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (1/1) ... [2019-01-01 22:03:44,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 22:03:44,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 22:03:44,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 22:03:44,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 22:03:44,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (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 [2019-01-01 22:03:44,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-01 22:03:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-01 22:03:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-01 22:03:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-01 22:03:44,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 22:03:44,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 22:03:44,873 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 22:03:44,873 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-01 22:03:44,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:03:44 BoogieIcfgContainer [2019-01-01 22:03:44,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 22:03:44,876 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 22:03:44,876 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 22:03:44,881 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 22:03:44,883 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:03:44,883 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 10:03:43" (1/3) ... [2019-01-01 22:03:44,884 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369c012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:03:44, skipping insertion in model container [2019-01-01 22:03:44,885 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:03:44,885 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:03:44" (2/3) ... [2019-01-01 22:03:44,886 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@369c012c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:03:44, skipping insertion in model container [2019-01-01 22:03:44,886 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:03:44,887 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:03:44" (3/3) ... [2019-01-01 22:03:44,889 INFO L375 chiAutomizerObserver]: Analyzing ICFG cstrlen_reverse_alloca_true-termination.c.i [2019-01-01 22:03:44,956 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 22:03:44,957 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 22:03:44,957 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 22:03:44,957 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 22:03:44,957 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 22:03:44,957 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 22:03:44,958 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 22:03:44,958 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 22:03:44,959 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 22:03:44,980 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-01-01 22:03:45,003 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:03:45,003 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:03:45,004 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:03:45,010 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-01 22:03:45,010 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:03:45,011 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 22:03:45,011 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states. [2019-01-01 22:03:45,012 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:03:45,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:03:45,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:03:45,013 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2019-01-01 22:03:45,013 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:03:45,022 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0]; 3#L-1true havoc main_#res;havoc main_#t~nondet207, main_#t~malloc208.base, main_#t~malloc208.offset, main_#t~ret209, main_~length1~0, main_~nondetString1~0.base, main_~nondetString1~0.offset;main_~length1~0 := main_#t~nondet207;havoc main_#t~nondet207; 13#L373true assume !(main_~length1~0 < 1); 6#L373-2true call main_#t~malloc208.base, main_#t~malloc208.offset := #Ultimate.allocOnStack(main_~length1~0);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_#t~malloc208.base, main_#t~malloc208.offset;call write~int(0, main_~nondetString1~0.base, main_~nondetString1~0.offset, 1);main_~nondetString1~0.base, main_~nondetString1~0.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset + (main_~length1~0 - 1);cstrlen_#in~s.base, cstrlen_#in~s.offset := main_~nondetString1~0.base, main_~nondetString1~0.offset;havoc cstrlen_#res;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset, cstrlen_#t~mem205, cstrlen_~s.base, cstrlen_~s.offset, cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~s.base, cstrlen_~s.offset := cstrlen_#in~s.base, cstrlen_#in~s.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_~s.base, cstrlen_~s.offset; 7#L367-3true [2019-01-01 22:03:45,023 INFO L796 eck$LassoCheckResult]: Loop: 7#L367-3true call cstrlen_#t~mem205 := read~int(cstrlen_~p~0.base, cstrlen_~p~0.offset, 1); 4#L367-1true assume !!(0 != cstrlen_#t~mem205);havoc cstrlen_#t~mem205;cstrlen_#t~post206.base, cstrlen_#t~post206.offset := cstrlen_~p~0.base, cstrlen_~p~0.offset;cstrlen_~p~0.base, cstrlen_~p~0.offset := cstrlen_#t~post206.base, cstrlen_#t~post206.offset - 1;havoc cstrlen_#t~post206.base, cstrlen_#t~post206.offset; 7#L367-3true [2019-01-01 22:03:45,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:03:45,029 INFO L82 PathProgramCache]: Analyzing trace with hash 925669, now seen corresponding path program 1 times [2019-01-01 22:03:45,031 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:03:45,032 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:03:45,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:03:45,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:03:45,169 INFO L82 PathProgramCache]: Analyzing trace with hash 1414, now seen corresponding path program 1 times [2019-01-01 22:03:45,170 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:03:45,170 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:03:45,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:03:45,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:03:45,187 INFO L82 PathProgramCache]: Analyzing trace with hash 889568362, now seen corresponding path program 1 times [2019-01-01 22:03:45,187 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:03:45,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:03:45,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:03:45,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:03:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:03:45,885 WARN L181 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-01-01 22:03:46,077 WARN L181 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2019-01-01 22:03:46,103 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:03:46,104 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:03:46,104 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:03:46,104 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:03:46,105 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:03:46,105 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:03:46,105 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:03:46,105 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:03:46,105 INFO L131 ssoRankerPreferences]: Filename of dumped script: cstrlen_reverse_alloca_true-termination.c.i_Iteration1_Lasso [2019-01-01 22:03:46,105 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:03:46,106 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:03:46,133 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,173 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,177 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,727 WARN L181 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-01-01 22:03:46,831 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,834 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,836 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,839 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:46,846 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:03:47,390 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:03:47,396 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:03:47,399 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 [2019-01-01 22:03:47,401 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,401 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:03:47,402 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,402 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,402 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,404 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:03:47,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:03:47,407 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,408 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 [2019-01-01 22:03:47,408 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,408 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,409 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,409 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,413 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:03:47,414 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:03:47,429 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,431 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 [2019-01-01 22:03:47,432 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,432 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:03:47,432 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,432 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,432 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,433 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:03:47,433 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:03:47,439 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,442 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 [2019-01-01 22:03:47,443 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,443 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,443 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,443 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,451 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:03:47,451 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:03:47,458 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,460 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 [2019-01-01 22:03:47,461 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,462 INFO L205 nArgumentSynthesizer]: 2 stem disjuncts [2019-01-01 22:03:47,462 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,462 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,469 INFO L402 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2019-01-01 22:03:47,469 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:03:47,521 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,521 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 [2019-01-01 22:03:47,522 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,522 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,522 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,523 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,526 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:03:47,526 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:03:47,535 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:03:47,536 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 [2019-01-01 22:03:47,537 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:03:47,537 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:03:47,537 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:03:47,537 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:03:47,544 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-01 22:03:47,544 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-01 22:03:47,666 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:03:47,718 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-01-01 22:03:47,718 INFO L444 ModelExtractionUtils]: 20 out of 28 variables were initially zero. Simplification set additionally 5 variables to zero. [2019-01-01 22:03:47,723 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:03:47,726 INFO L440 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2019-01-01 22:03:47,726 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:03:47,727 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_cstrlen_~p~0.offset) = 2*ULTIMATE.start_cstrlen_~p~0.offset + 1 Supporting invariants [] [2019-01-01 22:03:47,793 INFO L297 tatePredicateManager]: 3 out of 3 supporting invariants were superfluous and have been removed [2019-01-01 22:03:47,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:03:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:03:47,878 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:03:47,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:03:47,894 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:03:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:03:47,931 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:03:47,933 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states. Second operand 3 states. [2019-01-01 22:03:47,985 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states.. Second operand 3 states. Result 23 states and 26 transitions. Complement of second has 5 states. [2019-01-01 22:03:47,987 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 [2019-01-01 22:03:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:03:47,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 17 transitions. [2019-01-01 22:03:47,991 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 2 letters. [2019-01-01 22:03:47,992 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:03:47,992 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 6 letters. Loop has 2 letters. [2019-01-01 22:03:47,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:03:47,993 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 17 transitions. Stem has 4 letters. Loop has 4 letters. [2019-01-01 22:03:47,993 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:03:47,994 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 26 transitions. [2019-01-01 22:03:47,996 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:03:48,000 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-01-01 22:03:48,002 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 22:03:48,002 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 22:03:48,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 22:03:48,003 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:03:48,003 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:03:48,003 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:03:48,003 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:03:48,003 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 22:03:48,004 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 22:03:48,004 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:03:48,004 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 22:03:48,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 10:03:48 BoogieIcfgContainer [2019-01-01 22:03:48,012 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 22:03:48,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 22:03:48,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 22:03:48,012 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 22:03:48,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:03:44" (3/4) ... [2019-01-01 22:03:48,017 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 22:03:48,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 22:03:48,018 INFO L168 Benchmark]: Toolchain (without parser) took 4378.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 951.3 MB in the beginning and 908.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 139.0 MB. Max. memory is 11.5 GB. [2019-01-01 22:03:48,020 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. [2019-01-01 22:03:48,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. [2019-01-01 22:03:48,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. [2019-01-01 22:03:48,022 INFO L168 Benchmark]: Boogie Preprocessor took 57.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:03:48,023 INFO L168 Benchmark]: RCFGBuilder took 368.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-01-01 22:03:48,024 INFO L168 Benchmark]: BuchiAutomizer took 3136.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 908.3 MB in the end (delta: 154.7 MB). Peak memory consumption was 154.7 MB. Max. memory is 11.5 GB. [2019-01-01 22:03:48,025 INFO L168 Benchmark]: Witness Printer took 5.44 ms. Allocated memory is still 1.1 GB. Free memory is still 908.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:03:48,030 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 746.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 95.9 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -138.1 MB). Peak memory consumption was 42.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 7.0 MB). Peak memory consumption was 7.0 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 57.52 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 368.17 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3136.13 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 908.3 MB in the end (delta: 154.7 MB). Peak memory consumption was 154.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.44 ms. Allocated memory is still 1.1 GB. Free memory is still 908.3 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * p + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital115 mio100 ax100 hnf99 lsp94 ukn91 mio100 lsp49 div100 bol100 ite100 ukn100 eq193 hnf89 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 60ms VariablesStem: 6 VariablesLoop: 3 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...