./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/recursive-simple/id_i20_o20_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/recursive-simple/id_i20_o20_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d7026bf672987d88e3a6ea48c2c5a690fd9a5f2 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:35:41,922 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:35:41,926 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:35:41,945 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:35:41,945 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:35:41,947 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:35:41,950 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:35:41,953 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:35:41,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:35:41,965 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:35:41,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:35:41,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:35:41,971 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:35:41,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:35:41,975 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:35:41,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:35:41,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:35:41,982 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:35:41,988 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:35:41,990 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:35:41,991 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:35:41,992 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:35:41,995 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:35:41,995 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:35:41,995 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:35:41,996 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:35:41,997 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:35:41,998 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:35:41,999 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:35:42,000 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:35:42,000 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:35:42,001 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:35:42,001 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:35:42,001 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:35:42,002 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:35:42,003 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:35:42,003 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:35:42,030 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:35:42,031 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:35:42,035 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:35:42,036 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:35:42,036 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:35:42,036 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:35:42,036 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:35:42,036 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:35:42,036 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:35:42,037 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:35:42,037 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:35:42,037 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:35:42,037 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:35:42,037 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:35:42,038 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:35:42,039 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:35:42,039 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:35:42,039 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:35:42,039 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:35:42,040 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:35:42,040 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:35:42,040 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:35:42,040 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:35:42,040 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:35:42,041 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:35:42,044 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:35:42,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:35:42,044 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:35:42,045 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:35:42,045 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:35:42,045 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:35:42,049 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:35:42,050 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d7026bf672987d88e3a6ea48c2c5a690fd9a5f2 [2019-01-14 04:35:42,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:35:42,152 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:35:42,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:35:42,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:35:42,164 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:35:42,165 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/id_i20_o20_true-unreach-call_true-termination.c [2019-01-14 04:35:42,242 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f712e891/4131405a435b4b27a49978ff8e29454c/FLAG662417c53 [2019-01-14 04:35:42,709 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:35:42,710 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive-simple/id_i20_o20_true-unreach-call_true-termination.c [2019-01-14 04:35:42,716 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f712e891/4131405a435b4b27a49978ff8e29454c/FLAG662417c53 [2019-01-14 04:35:43,090 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f712e891/4131405a435b4b27a49978ff8e29454c [2019-01-14 04:35:43,095 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:35:43,098 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:35:43,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:35:43,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:35:43,104 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:35:43,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fbb653 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43, skipping insertion in model container [2019-01-14 04:35:43,110 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:35:43,140 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:35:43,363 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:35:43,369 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:35:43,393 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:35:43,408 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:35:43,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43 WrapperNode [2019-01-14 04:35:43,409 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:35:43,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:35:43,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:35:43,410 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:35:43,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:35:43,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:35:43,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:35:43,445 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:35:43,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:35:43,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:35:43,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:35:43,467 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:35:43,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (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 04:35:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:35:43,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:35:43,615 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-01-14 04:35:43,616 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-01-14 04:35:43,815 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:35:43,815 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 04:35:43,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:43 BoogieIcfgContainer [2019-01-14 04:35:43,817 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:35:43,818 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:35:43,818 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:35:43,823 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:35:43,825 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:43,826 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:35:43" (1/3) ... [2019-01-14 04:35:43,827 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24c52e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:35:43, skipping insertion in model container [2019-01-14 04:35:43,827 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:43,828 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43" (2/3) ... [2019-01-14 04:35:43,829 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24c52e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:35:43, skipping insertion in model container [2019-01-14 04:35:43,829 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:43,829 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:43" (3/3) ... [2019-01-14 04:35:43,832 INFO L375 chiAutomizerObserver]: Analyzing ICFG id_i20_o20_true-unreach-call_true-termination.c [2019-01-14 04:35:43,924 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:35:43,926 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:35:43,926 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:35:43,926 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:35:43,927 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:35:43,927 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:35:43,927 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:35:43,928 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:35:43,928 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:35:43,958 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:35:44,021 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:35:44,021 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:35:44,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:35:44,050 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:35:44,052 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:35:44,052 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:35:44,052 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:35:44,055 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:35:44,056 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:35:44,056 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:35:44,057 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:35:44,057 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:35:44,071 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~input~0, main_~result~0;main_~input~0 := 20; 7#L11true call main_#t~ret1 := id(main_~input~0);< 9#idENTRYtrue [2019-01-14 04:35:44,072 INFO L796 eck$LassoCheckResult]: Loop: 9#idENTRYtrue ~x := #in~x; 14#L5true assume !(0 == ~x); 11#L6true call #t~ret0 := id(~x - 1);< 9#idENTRYtrue [2019-01-14 04:35:44,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-01-14 04:35:44,081 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,082 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,212 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-01-14 04:35:44,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,234 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-01-14 04:35:44,234 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,234 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,432 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:44,433 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:44,433 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:44,433 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:44,434 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 04:35:44,434 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:44,434 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:44,434 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:44,434 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i20_o20_true-unreach-call_true-termination.c_Iteration1_Loop [2019-01-14 04:35:44,434 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:44,435 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:44,463 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 04:35:44,499 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 04:35:44,527 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 04:35:44,624 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 04:35:44,893 WARN L181 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-14 04:35:45,037 WARN L181 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-14 04:35:45,054 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:45,055 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 04:35:45,062 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,062 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:45,080 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,080 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#t~ret0=0} Honda state: {id_#t~ret0=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 04:35:45,109 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,109 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:45,115 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,115 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#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 04:35:45,139 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,139 INFO L163 nArgumentSynthesizer]: Using integer mode. 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) [2019-01-14 04:35:45,198 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 04:35:45,199 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,233 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,234 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#in~x=-8} Honda state: {id_#in~x=-8} Generalized eigenvectors: [{id_#in~x=-1}, {id_#in~x=0}, {id_#in~x=0}] Lambdas: [1, 0, 8] Nus: [0, 0] 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) [2019-01-14 04:35:45,285 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,286 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,304 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,304 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_~x=0} Honda state: {id_~x=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-01-14 04:35:45,495 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:45,496 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:45,496 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:45,496 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:45,496 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 04:35:45,496 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,497 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:45,497 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:45,497 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i20_o20_true-unreach-call_true-termination.c_Iteration1_Lasso [2019-01-14 04:35:45,497 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:45,497 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:45,501 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 04:35:45,528 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 04:35:45,582 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 04:35:45,588 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 04:35:45,595 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 04:35:45,599 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 04:35:45,605 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 04:35:45,611 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 04:35:45,617 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 04:35:45,910 WARN L181 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-14 04:35:45,995 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:45,998 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:46,013 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:46,013 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:46,031 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:46,031 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {id_#res=0} Honda state: {id_#res=0} 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) [2019-01-14 04:35:46,072 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:46,072 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 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 04:35:46,105 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 04:35:46,105 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:46,136 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 04:35:46,139 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:46,139 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:46,139 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:46,140 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:46,140 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 04:35:46,140 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:46,140 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:46,140 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:46,141 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i20_o20_true-unreach-call_true-termination.c_Iteration1_Lasso [2019-01-14 04:35:46,141 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:46,141 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:46,143 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 04:35:46,161 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 04:35:46,165 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:35:46,168 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 04:35:46,172 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 04:35:46,180 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 04:35:46,189 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 04:35:46,206 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 04:35:46,211 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 04:35:46,351 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:46,361 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 04:35:46,364 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 04:35:46,369 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,369 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,371 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,371 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,372 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,385 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,387 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 04:35:46,390 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,391 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,391 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,392 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,392 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,394 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,395 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,397 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,398 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 04:35:46,399 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,402 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,403 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,403 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,404 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,405 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,405 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,409 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,410 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 04:35:46,413 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,413 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,414 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,414 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,415 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,416 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,417 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,419 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,421 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 04:35:46,422 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,424 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,425 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,425 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,425 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,428 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,429 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,430 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,432 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 04:35:46,435 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,435 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,437 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,437 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,437 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,438 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,439 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,442 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,443 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 04:35:46,446 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,447 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,447 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-14 04:35:46,447 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,462 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-01-14 04:35:46,463 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-01-14 04:35:46,653 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 04:35:46,805 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-01-14 04:35:46,807 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2019-01-14 04:35:46,812 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 04:35:46,826 INFO L440 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-01-14 04:35:46,827 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 04:35:46,828 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(id_#in~x) = 1*id_#in~x Supporting invariants [1*id_#in~x >= 0] [2019-01-14 04:35:46,857 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-14 04:35:47,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:35:47,213 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:35:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:35:47,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:35:47,464 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 04:35:47,483 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.2 stem predicates 3 loop predicates [2019-01-14 04:35:47,484 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 5 states. [2019-01-14 04:35:47,802 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 14 states.. Second operand 5 states. Result 29 states and 34 transitions. Complement of second has 13 states. [2019-01-14 04:35:47,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 2 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-14 04:35:47,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-14 04:35:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-01-14 04:35:47,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-01-14 04:35:47,810 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,810 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-14 04:35:47,811 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,811 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-01-14 04:35:47,812 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-01-14 04:35:47,818 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:35:47,821 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-01-14 04:35:47,822 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 04:35:47,823 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 04:35:47,823 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 04:35:47,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:35:47,824 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,824 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,824 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,824 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:35:47,824 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 04:35:47,825 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:35:47,825 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 04:35:47,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:35:47 BoogieIcfgContainer [2019-01-14 04:35:47,832 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:35:47,833 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:35:47,833 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:35:47,833 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:35:47,834 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:43" (3/4) ... [2019-01-14 04:35:47,840 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 04:35:47,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:35:47,841 INFO L168 Benchmark]: Toolchain (without parser) took 4745.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 944.7 MB in the beginning and 960.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 102.0 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,844 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,845 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.14 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,847 INFO L168 Benchmark]: Boogie Preprocessor took 20.90 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,848 INFO L168 Benchmark]: RCFGBuilder took 351.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,849 INFO L168 Benchmark]: BuchiAutomizer took 4013.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 141.6 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,850 INFO L168 Benchmark]: Witness Printer took 7.47 ms. Allocated memory is still 1.1 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,856 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.14 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.70 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.90 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 351.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.0 MB). Free memory was 932.6 MB in the beginning and 1.1 GB in the end (delta: -169.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4013.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 960.6 MB in the end (delta: 141.6 MB). Peak memory consumption was 141.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.47 ms. Allocated memory is still 1.1 GB. Free memory is still 960.6 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 \old(x) and consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.8s. 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: 4 SDtfs, 8 SDslu, 2 SDs, 0 SdLazy, 16 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital12 mio100 ax100 hnf100 lsp100 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq202 hnf95 smp100 dnf150 smp100 tf102 neg94 sie111 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 384ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 4 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...