./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Stockholm_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/termination-crafted/Stockholm_true-termination_true-valid-memsafety.c -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 040d33ccd9815b678c9b7e32d7f71732a5b9b93a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:15:23,961 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:15:23,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:15:23,976 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:15:23,976 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:15:23,978 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:15:23,979 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:15:23,981 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:15:23,983 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:15:23,985 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:15:23,986 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:15:23,986 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:15:23,987 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:15:23,989 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:15:23,990 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:15:23,991 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:15:23,992 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:15:23,995 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:15:23,997 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:15:23,999 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:15:24,001 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:15:24,002 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:15:24,005 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:15:24,006 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:15:24,006 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:15:24,008 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:15:24,009 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:15:24,010 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:15:24,011 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:15:24,012 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:15:24,012 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:15:24,013 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:15:24,013 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:15:24,014 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:15:24,015 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:15:24,016 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:15:24,016 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:15:24,036 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:15:24,037 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:15:24,038 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:15:24,042 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:15:24,042 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:15:24,042 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:15:24,043 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:15:24,043 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:15:24,043 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:15:24,043 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:15:24,043 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:15:24,043 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:15:24,045 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:15:24,046 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:15:24,047 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:15:24,049 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:15:24,049 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:15:24,049 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:15:24,049 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:15:24,049 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:15:24,050 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:15:24,050 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:15:24,051 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:15:24,053 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:15:24,053 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 -> 040d33ccd9815b678c9b7e32d7f71732a5b9b93a [2019-01-14 02:15:24,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:15:24,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:15:24,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:15:24,143 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:15:24,143 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:15:24,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Stockholm_true-termination_true-valid-memsafety.c [2019-01-14 02:15:24,214 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f9ca200/e72fac5182b7405a98f8d736424cb138/FLAG0bddeabd5 [2019-01-14 02:15:24,717 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:15:24,717 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Stockholm_true-termination_true-valid-memsafety.c [2019-01-14 02:15:24,723 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f9ca200/e72fac5182b7405a98f8d736424cb138/FLAG0bddeabd5 [2019-01-14 02:15:25,075 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83f9ca200/e72fac5182b7405a98f8d736424cb138 [2019-01-14 02:15:25,079 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:15:25,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:15:25,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:15:25,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:15:25,086 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:15:25,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31f70efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25, skipping insertion in model container [2019-01-14 02:15:25,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:15:25,117 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:15:25,358 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:15:25,365 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:15:25,388 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:15:25,406 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:15:25,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25 WrapperNode [2019-01-14 02:15:25,407 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:15:25,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:15:25,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:15:25,408 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:15:25,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,454 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:15:25,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:15:25,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:15:25,454 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:15:25,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,467 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,483 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (1/1) ... [2019-01-14 02:15:25,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:15:25,490 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:15:25,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:15:25,490 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:15:25,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (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 02:15:25,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:15:25,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:15:25,819 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:15:25,820 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:15:25,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:25 BoogieIcfgContainer [2019-01-14 02:15:25,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:15:25,823 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:15:25,823 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:15:25,827 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:15:25,827 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:25,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:15:25" (1/3) ... [2019-01-14 02:15:25,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16374e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:15:25, skipping insertion in model container [2019-01-14 02:15:25,829 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:25,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:15:25" (2/3) ... [2019-01-14 02:15:25,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@16374e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:15:25, skipping insertion in model container [2019-01-14 02:15:25,829 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:15:25,830 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:25" (3/3) ... [2019-01-14 02:15:25,831 INFO L375 chiAutomizerObserver]: Analyzing ICFG Stockholm_true-termination_true-valid-memsafety.c [2019-01-14 02:15:25,892 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:15:25,893 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:15:25,893 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:15:25,893 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:15:25,894 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:15:25,894 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:15:25,894 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:15:25,894 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:15:25,894 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:15:25,912 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 02:15:25,940 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:15:25,940 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:15:25,941 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:15:25,948 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-14 02:15:25,948 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:15:25,948 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:15:25,948 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-14 02:15:25,950 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:15:25,950 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:15:25,950 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:15:25,951 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2019-01-14 02:15:25,951 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:15:25,960 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~a~0, main_~b~0;havoc main_~x~0;havoc main_~a~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~a~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2; 4#L22true assume !!(-268435455 <= main_~x~0 && main_~x~0 <= 268435455); 5#L23true assume !!(-268435455 <= main_~a~0 && main_~a~0 <= 268435455); 7#L24true assume !!(-268435455 <= main_~b~0 && main_~b~0 <= 268435455); 12#L25true assume main_~a~0 == main_~b~0; 8#L26-2true [2019-01-14 02:15:25,961 INFO L796 eck$LassoCheckResult]: Loop: 8#L26-2true assume !!(main_~x~0 >= 0);main_~x~0 := main_~x~0 + main_~a~0 - main_~b~0 - 1; 8#L26-2true [2019-01-14 02:15:25,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:25,968 INFO L82 PathProgramCache]: Analyzing trace with hash 29742504, now seen corresponding path program 1 times [2019-01-14 02:15:25,970 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:25,971 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:26,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:26,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:26,089 INFO L82 PathProgramCache]: Analyzing trace with hash 59, now seen corresponding path program 1 times [2019-01-14 02:15:26,089 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:26,090 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:26,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:26,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:26,101 INFO L82 PathProgramCache]: Analyzing trace with hash 922017652, now seen corresponding path program 1 times [2019-01-14 02:15:26,102 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:15:26,102 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:15:26,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:15:26,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:15:26,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:15:26,433 WARN L181 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 19 [2019-01-14 02:15:26,485 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:15:26,486 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:15:26,486 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:15:26,487 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:15:26,487 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:15:26,487 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:15:26,487 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:15:26,487 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:15:26,487 INFO L131 ssoRankerPreferences]: Filename of dumped script: Stockholm_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2019-01-14 02:15:26,488 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:15:26,488 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:15:26,511 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 02:15:26,519 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 02:15:26,526 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 02:15:26,548 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 02:15:26,551 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 02:15:26,555 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 02:15:26,596 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 02:15:27,018 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:15:27,019 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 02:15:27,024 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,025 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,031 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=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 02:15:27,056 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,056 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,070 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,070 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:15:27,099 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,099 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,120 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,121 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 02:15:27,125 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,125 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,128 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,129 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:15:27,153 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,153 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,172 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,173 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] 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 02:15:27,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,198 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:27,233 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:15:27,233 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /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 02:15:27,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:15:27,239 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:15:27,294 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:15:27,294 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:15:39,425 INFO L450 LassoAnalysis]: Proving nontermination failed: SMT Solver returned 'unknown'. [2019-01-14 02:15:39,436 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:15:39,437 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:15:39,437 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:15:39,437 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:15:39,437 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:15:39,438 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:15:39,438 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:15:39,439 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:15:39,439 INFO L131 ssoRankerPreferences]: Filename of dumped script: Stockholm_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2019-01-14 02:15:39,439 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:15:39,440 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:15:39,442 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 02:15:39,448 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 02:15:39,455 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 02:15:39,464 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 02:15:39,473 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 02:15:39,476 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 02:15:39,480 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 02:15:39,592 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-14 02:15:39,926 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:15:39,933 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:15:39,936 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 02:15:39,939 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:39,940 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:15:39,941 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:39,942 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:39,942 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:39,945 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:15:39,945 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:15:39,953 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:39,953 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 02:15:39,954 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:39,955 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:39,955 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:39,955 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:39,958 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:15:39,960 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:15:39,980 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:39,980 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 02:15:39,981 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:39,981 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:15:39,984 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:39,984 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:39,984 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:39,985 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:15:39,985 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:15:39,986 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:39,991 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 02:15:39,992 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:39,992 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:15:39,994 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:39,994 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:39,994 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:39,995 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:15:39,995 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:15:39,996 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:39,999 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 02:15:40,000 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:40,000 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:15:40,004 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:40,004 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:40,004 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:40,005 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:15:40,005 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:15:40,008 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:40,009 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 02:15:40,010 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:40,010 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:40,010 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:40,010 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:40,015 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:15:40,015 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:15:40,024 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:15:40,024 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 02:15:40,025 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:15:40,025 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:15:40,026 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:15:40,026 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:15:40,032 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:15:40,032 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:15:40,110 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:15:40,128 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 02:15:40,128 INFO L444 ModelExtractionUtils]: 8 out of 13 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-14 02:15:40,131 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:15:40,135 INFO L440 nArgumentSynthesizer]: Removed 1 redundant supporting invariants from a total of 2. [2019-01-14 02:15:40,136 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:15:40,136 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 2*ULTIMATE.start_main_~x~0 + 1 Supporting invariants [1*ULTIMATE.start_main_~b~0 - 1*ULTIMATE.start_main_~a~0 >= 0] [2019-01-14 02:15:40,166 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-14 02:15:40,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:15:40,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:15:40,538 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:15:40,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:15:40,565 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:15:40,566 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 02:15:40,584 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 02:15:40,585 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 2 states. [2019-01-14 02:15:40,821 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 2 states. Result 23 states and 29 transitions. Complement of second has 5 states. [2019-01-14 02:15:40,822 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 02:15:40,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-14 02:15:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2019-01-14 02:15:40,826 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 1 letters. [2019-01-14 02:15:40,827 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:15:40,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 6 letters. Loop has 1 letters. [2019-01-14 02:15:40,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:15:40,828 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 21 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-14 02:15:40,828 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:15:40,829 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 29 transitions. [2019-01-14 02:15:40,833 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:15:40,836 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2019-01-14 02:15:40,838 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:15:40,838 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:15:40,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:15:40,838 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:15:40,839 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:15:40,839 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:15:40,839 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:15:40,839 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:15:40,839 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:15:40,839 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:15:40,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:15:40,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:15:40 BoogieIcfgContainer [2019-01-14 02:15:40,847 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:15:40,848 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:15:40,848 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:15:40,848 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:15:40,849 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:15:25" (3/4) ... [2019-01-14 02:15:40,853 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:15:40,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:15:40,854 INFO L168 Benchmark]: Toolchain (without parser) took 15774.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 952.7 MB in the beginning and 966.4 MB in the end (delta: -13.7 MB). Peak memory consumption was 115.8 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:40,855 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 02:15:40,856 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:40,857 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.23 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:40,858 INFO L168 Benchmark]: Boogie Preprocessor took 30.39 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:40,858 INFO L168 Benchmark]: RCFGBuilder took 332.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -162.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:40,859 INFO L168 Benchmark]: BuchiAutomizer took 15024.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.4 MB in the end (delta: 138.2 MB). Peak memory consumption was 138.2 MB. Max. memory is 11.5 GB. [2019-01-14 02:15:40,860 INFO L168 Benchmark]: Witness Printer took 5.54 ms. Allocated memory is still 1.2 GB. Free memory is still 966.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:15:40,865 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 324.98 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.23 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.39 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -162.5 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 15024.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 966.4 MB in the end (delta: 138.2 MB). Peak memory consumption was 138.2 MB. Max. memory is 11.5 GB. * Witness Printer took 5.54 ms. Allocated memory is still 1.2 GB. Free memory is still 966.4 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function 2 * x + 1 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 14.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 14.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.5s. 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: 15 SDtfs, 15 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital33 mio100 ax136 hnf97 lsp72 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq140 hnf95 smp100 dnf100 smp100 tf100 neg100 sie100 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 26ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 1 LassoNonterminationAnalysisTime: 12.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...