./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/recursive-simple/id_i25_o25_false-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_i25_o25_false-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 a544811fe2a74801350302afc46fb67e1c6f238a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 04:35:42,308 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 04:35:42,311 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 04:35:42,324 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 04:35:42,325 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 04:35:42,326 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 04:35:42,328 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 04:35:42,331 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 04:35:42,337 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 04:35:42,342 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 04:35:42,343 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 04:35:42,343 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 04:35:42,345 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 04:35:42,346 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 04:35:42,348 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 04:35:42,349 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 04:35:42,349 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 04:35:42,352 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 04:35:42,355 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 04:35:42,357 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 04:35:42,358 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 04:35:42,360 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 04:35:42,363 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 04:35:42,363 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 04:35:42,364 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 04:35:42,365 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 04:35:42,366 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 04:35:42,367 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 04:35:42,369 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 04:35:42,370 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 04:35:42,370 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 04:35:42,371 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 04:35:42,372 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 04:35:42,372 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 04:35:42,374 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 04:35:42,375 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 04:35:42,375 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 04:35:42,394 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 04:35:42,394 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 04:35:42,396 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 04:35:42,396 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 04:35:42,396 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 04:35:42,396 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 04:35:42,396 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 04:35:42,397 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 04:35:42,398 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 04:35:42,398 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 04:35:42,398 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 04:35:42,398 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 04:35:42,398 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 04:35:42,398 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 04:35:42,399 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 04:35:42,400 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 04:35:42,401 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 04:35:42,401 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 04:35:42,401 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 04:35:42,401 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 04:35:42,401 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 04:35:42,402 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 04:35:42,403 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 04:35:42,403 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 04:35:42,404 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 04:35:42,404 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 04:35:42,406 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 04:35:42,406 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 -> a544811fe2a74801350302afc46fb67e1c6f238a [2019-01-14 04:35:42,455 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 04:35:42,475 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 04:35:42,484 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 04:35:42,486 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 04:35:42,487 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 04:35:42,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive-simple/id_i25_o25_false-unreach-call_true-termination.c [2019-01-14 04:35:42,567 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba193d95/356a92aaf6164d869df5dbc864120323/FLAG793d851b1 [2019-01-14 04:35:43,003 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 04:35:43,004 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive-simple/id_i25_o25_false-unreach-call_true-termination.c [2019-01-14 04:35:43,012 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba193d95/356a92aaf6164d869df5dbc864120323/FLAG793d851b1 [2019-01-14 04:35:43,371 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fba193d95/356a92aaf6164d869df5dbc864120323 [2019-01-14 04:35:43,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 04:35:43,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 04:35:43,380 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 04:35:43,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 04:35:43,385 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 04:35:43,387 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@707b848b 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 04:35:43,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:35:43" (1/1) ... [2019-01-14 04:35:43,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 04:35:43,422 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 04:35:43,675 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:35:43,682 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 04:35:43,703 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 04:35:43,725 INFO L195 MainTranslator]: Completed translation [2019-01-14 04:35:43,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:35:43 WrapperNode [2019-01-14 04:35:43,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 04:35:43,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 04:35:43,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 04:35:43,729 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 04:35:43,741 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 04:35:43,747 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 04:35:43,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 04:35:43,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 04:35:43,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 04:35:43,777 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 04:35:43,791 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 04:35:43,792 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 04:35:43,793 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 04:35:43,793 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 04:35:43,796 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 04:35:43,798 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 04:35:43,799 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 04:35:43,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 04:35:43,804 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 04:35:43,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 04:35:43,805 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 04:35:43,806 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 04:35:43,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 04:35:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 04:35:43,954 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-01-14 04:35:43,954 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-01-14 04:35:44,113 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 04:35:44,113 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 04:35:44,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:44 BoogieIcfgContainer [2019-01-14 04:35:44,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 04:35:44,116 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 04:35:44,116 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 04:35:44,120 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 04:35:44,122 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:44,122 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 04:35:43" (1/3) ... [2019-01-14 04:35:44,123 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25eb36cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:35:44, skipping insertion in model container [2019-01-14 04:35:44,123 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:44,123 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 04:35:44,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25eb36cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 04:35:44, skipping insertion in model container [2019-01-14 04:35:44,124 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 04:35:44,124 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:44" (3/3) ... [2019-01-14 04:35:44,126 INFO L375 chiAutomizerObserver]: Analyzing ICFG id_i25_o25_false-unreach-call_true-termination.c [2019-01-14 04:35:44,227 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 04:35:44,228 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 04:35:44,229 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 04:35:44,229 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 04:35:44,230 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 04:35:44,230 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 04:35:44,230 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 04:35:44,230 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 04:35:44,230 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 04:35:44,265 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:35:44,332 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:35:44,333 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:35:44,333 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:35:44,344 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:35:44,344 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:35:44,344 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 04:35:44,344 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 14 states. [2019-01-14 04:35:44,347 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2019-01-14 04:35:44,347 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 04:35:44,348 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 04:35:44,349 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 04:35:44,350 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 04:35:44,360 INFO L794 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~ret1, main_~input~0, main_~result~0;main_~input~0 := 25; 7#L11true call main_#t~ret1 := id(main_~input~0);< 9#idENTRYtrue [2019-01-14 04:35:44,361 INFO L796 eck$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 04:35:44,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,370 INFO L82 PathProgramCache]: Analyzing trace with hash 1014, now seen corresponding path program 1 times [2019-01-14 04:35:44,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,483 INFO L82 PathProgramCache]: Analyzing trace with hash 43827, now seen corresponding path program 1 times [2019-01-14 04:35:44,483 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,484 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,485 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,485 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:44,502 INFO L82 PathProgramCache]: Analyzing trace with hash 30222110, now seen corresponding path program 1 times [2019-01-14 04:35:44,502 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 04:35:44,502 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 04:35:44,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 04:35:44,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 04:35:44,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 04:35:44,710 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:44,711 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:44,712 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:44,712 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:44,712 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 04:35:44,712 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:44,712 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:44,712 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:44,713 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i25_o25_false-unreach-call_true-termination.c_Iteration1_Loop [2019-01-14 04:35:44,713 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:44,713 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:44,738 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 04:35:44,770 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 04:35:44,783 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 04:35:44,820 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 04:35:44,995 WARN L181 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-14 04:35:45,037 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:45,038 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 04:35:45,052 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,053 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:45,065 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,065 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 04:35:45,091 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,092 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:45,097 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,097 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) [2019-01-14 04:35:45,121 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,121 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 04:35:45,181 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 04:35:45,182 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 04:35:45,208 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,208 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 04:35:45,254 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,255 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 04:35:45,268 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,268 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 04:35:45,436 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:45,436 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:45,436 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:45,437 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:45,437 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 04:35:45,437 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,437 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:45,437 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:45,437 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i25_o25_false-unreach-call_true-termination.c_Iteration1_Lasso [2019-01-14 04:35:45,437 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:45,438 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:45,440 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 04:35:45,464 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 04:35:45,517 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 04:35:45,523 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 04:35:45,527 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 04:35:45,536 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 04:35:45,541 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 04:35:45,546 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 04:35:45,550 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 04:35:45,895 WARN L181 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2019-01-14 04:35:45,924 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:45,925 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) [2019-01-14 04:35:45,932 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,932 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,940 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 04:35:45,940 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) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:45,964 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 04:35:45,965 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 04:35:45,994 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 04:35:45,994 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 04:35:46,026 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 04:35:46,030 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 04:35:46,031 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 04:35:46,031 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 04:35:46,031 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 04:35:46,031 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 04:35:46,031 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 04:35:46,031 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 04:35:46,031 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 04:35:46,032 INFO L131 ssoRankerPreferences]: Filename of dumped script: id_i25_o25_false-unreach-call_true-termination.c_Iteration1_Lasso [2019-01-14 04:35:46,032 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 04:35:46,032 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 04:35:46,034 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 04:35:46,043 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 04:35:46,048 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 04:35:46,060 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 04:35:46,063 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 04:35:46,066 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 04:35:46,074 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 04:35:46,096 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 04:35:46,102 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 04:35:46,250 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 04:35:46,256 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 04:35:46,259 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 04:35:46,261 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,261 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,262 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,262 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,263 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,265 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,265 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,272 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,272 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 04:35:46,273 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,273 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,274 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,274 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,274 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,275 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,275 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,276 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,277 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 04:35:46,280 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,280 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,281 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,281 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,281 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,283 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,283 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,286 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,287 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 04:35:46,289 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,289 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,289 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,290 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,290 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,292 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,292 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,295 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,296 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 04:35:46,298 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,299 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,299 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,299 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,299 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,301 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,302 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,303 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,304 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 04:35:46,306 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,307 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 04:35:46,307 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,307 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 04:35:46,307 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,309 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 04:35:46,309 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 04:35:46,311 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 04:35:46,312 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 04:35:46,312 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 04:35:46,314 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 04:35:46,314 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-14 04:35:46,315 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 04:35:46,326 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-01-14 04:35:46,326 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-01-14 04:35:46,486 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 04:35:46,575 INFO L443 ModelExtractionUtils]: Simplification made 5 calls to the SMT solver. [2019-01-14 04:35:46,578 INFO L444 ModelExtractionUtils]: 3 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2019-01-14 04:35:46,584 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 04:35:46,599 INFO L440 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-01-14 04:35:46,600 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 04:35:46,602 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 04:35:46,641 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-14 04:35:46,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 04:35:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:35:46,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:35:47,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 04:35:47,013 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 04:35:47,205 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 04:35:47,220 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 04:35:47,221 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 14 states. Second operand 5 states. [2019-01-14 04:35:47,549 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 04:35:47,550 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 04:35:47,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-14 04:35:47,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-01-14 04:35:47,554 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 3 letters. [2019-01-14 04:35:47,555 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,555 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 5 letters. Loop has 3 letters. [2019-01-14 04:35:47,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,556 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 7 transitions. Stem has 2 letters. Loop has 6 letters. [2019-01-14 04:35:47,556 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 04:35:47,558 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 29 states and 34 transitions. [2019-01-14 04:35:47,563 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:35:47,566 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 29 states to 0 states and 0 transitions. [2019-01-14 04:35:47,567 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 04:35:47,567 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 04:35:47,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 04:35:47,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 04:35:47,568 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,569 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,569 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 04:35:47,569 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 04:35:47,569 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 04:35:47,569 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 04:35:47,569 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 04:35:47,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 04:35:47 BoogieIcfgContainer [2019-01-14 04:35:47,577 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 04:35:47,578 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 04:35:47,578 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 04:35:47,578 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 04:35:47,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:35:44" (3/4) ... [2019-01-14 04:35:47,591 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 04:35:47,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 04:35:47,592 INFO L168 Benchmark]: Toolchain (without parser) took 4214.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 946.0 MB in the beginning and 961.6 MB in the end (delta: -15.6 MB). Peak memory consumption was 110.2 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,593 INFO L168 Benchmark]: CDTParser took 0.17 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 04:35:47,594 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.15 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,595 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.72 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,596 INFO L168 Benchmark]: Boogie Preprocessor took 27.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 04:35:47,597 INFO L168 Benchmark]: RCFGBuilder took 310.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,598 INFO L168 Benchmark]: BuchiAutomizer took 3461.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.4 MB in the end (delta: 142.1 MB). Peak memory consumption was 142.1 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,599 INFO L168 Benchmark]: Witness Printer took 13.65 ms. Allocated memory is still 1.2 GB. Free memory was 968.4 MB in the beginning and 961.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-14 04:35:47,605 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 347.15 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.3 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 47.72 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.53 ms. Allocated memory is still 1.0 GB. Free memory is still 935.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 310.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -175.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3461.37 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.4 MB in the end (delta: 142.1 MB). Peak memory consumption was 142.1 MB. Max. memory is 11.5 GB. * Witness Printer took 13.65 ms. Allocated memory is still 1.2 GB. Free memory was 968.4 MB in the beginning and 961.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. 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 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.3s. 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: 288ms 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...