./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loop-lit/gj2007_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loop-lit/gj2007_true-unreach-call_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1a9963030a13e3c679db84f21688cc66372a5ac3 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 23:08:59,836 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 23:08:59,838 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 23:08:59,852 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 23:08:59,854 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 23:08:59,855 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 23:08:59,857 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 23:08:59,860 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 23:08:59,864 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 23:08:59,867 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 23:08:59,870 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 23:08:59,871 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 23:08:59,872 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 23:08:59,875 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 23:08:59,883 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 23:08:59,884 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 23:08:59,888 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 23:08:59,891 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 23:08:59,897 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 23:08:59,900 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 23:08:59,903 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 23:08:59,905 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 23:08:59,911 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 23:08:59,911 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 23:08:59,911 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 23:08:59,912 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 23:08:59,914 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 23:08:59,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 23:08:59,917 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 23:08:59,920 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 23:08:59,922 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 23:08:59,923 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 23:08:59,923 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 23:08:59,923 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 23:08:59,924 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 23:08:59,927 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 23:08:59,929 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 23:08:59,953 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 23:08:59,953 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 23:08:59,954 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 23:08:59,954 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 23:08:59,956 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 23:08:59,956 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 23:08:59,956 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 23:08:59,956 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 23:08:59,956 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 23:08:59,958 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 23:08:59,958 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 23:08:59,958 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 23:08:59,959 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 23:08:59,959 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 23:08:59,959 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 23:08:59,960 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 23:08:59,960 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 23:08:59,960 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 23:08:59,960 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 23:08:59,961 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 23:08:59,961 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 23:08:59,961 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 23:08:59,961 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 23:08:59,961 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 23:08:59,962 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 23:08:59,964 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 23:08:59,965 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 23:08:59,965 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 23:08:59,965 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 23:08:59,965 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 23:08:59,965 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 23:08:59,966 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 23:08:59,967 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 -> 1a9963030a13e3c679db84f21688cc66372a5ac3 [2019-01-01 23:09:00,028 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 23:09:00,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 23:09:00,053 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 23:09:00,055 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 23:09:00,056 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 23:09:00,057 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2019-01-01 23:09:00,128 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbaa45f8/61ecd97c88d04e628313e497f23d9d84/FLAG4d55c7c63 [2019-01-01 23:09:00,573 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 23:09:00,574 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/gj2007_true-unreach-call_true-termination.c.i [2019-01-01 23:09:00,579 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbaa45f8/61ecd97c88d04e628313e497f23d9d84/FLAG4d55c7c63 [2019-01-01 23:09:00,945 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fbaa45f8/61ecd97c88d04e628313e497f23d9d84 [2019-01-01 23:09:00,949 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 23:09:00,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 23:09:00,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 23:09:00,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 23:09:00,957 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 23:09:00,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:09:00" (1/1) ... [2019-01-01 23:09:00,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d23330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:00, skipping insertion in model container [2019-01-01 23:09:00,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 11:09:00" (1/1) ... [2019-01-01 23:09:00,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 23:09:00,993 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 23:09:01,216 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:09:01,222 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 23:09:01,240 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 23:09:01,256 INFO L195 MainTranslator]: Completed translation [2019-01-01 23:09:01,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01 WrapperNode [2019-01-01 23:09:01,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 23:09:01,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 23:09:01,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 23:09:01,258 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 23:09:01,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,275 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 23:09:01,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 23:09:01,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 23:09:01,300 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 23:09:01,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... [2019-01-01 23:09:01,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 23:09:01,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 23:09:01,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 23:09:01,339 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 23:09:01,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:01,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 23:09:01,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 23:09:01,643 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 23:09:01,643 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-01 23:09:01,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:09:01 BoogieIcfgContainer [2019-01-01 23:09:01,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 23:09:01,645 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 23:09:01,645 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 23:09:01,650 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 23:09:01,651 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:09:01,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 11:09:00" (1/3) ... [2019-01-01 23:09:01,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26da5d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:09:01, skipping insertion in model container [2019-01-01 23:09:01,653 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:09:01,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 11:09:01" (2/3) ... [2019-01-01 23:09:01,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@26da5d06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 11:09:01, skipping insertion in model container [2019-01-01 23:09:01,654 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 23:09:01,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:09:01" (3/3) ... [2019-01-01 23:09:01,657 INFO L375 chiAutomizerObserver]: Analyzing ICFG gj2007_true-unreach-call_true-termination.c.i [2019-01-01 23:09:01,775 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 23:09:01,776 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 23:09:01,777 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 23:09:01,777 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 23:09:01,777 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 23:09:01,777 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 23:09:01,778 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 23:09:01,778 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 23:09:01,779 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 23:09:01,799 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 23:09:01,845 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 23:09:01,845 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:09:01,845 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:09:01,854 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 23:09:01,861 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 23:09:01,861 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 23:09:01,861 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 23:09:01,863 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 23:09:01,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:09:01,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:09:01,867 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 23:09:01,868 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 23:09:01,882 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~x~0, main_~y~0;main_~x~0 := 0;main_~y~0 := 50; 7#L14-2true [2019-01-01 23:09:01,883 INFO L796 eck$LassoCheckResult]: Loop: 7#L14-2true assume !!(main_~x~0 < 100); 11#L14true assume main_~x~0 < 50;main_~x~0 := 1 + main_~x~0; 7#L14-2true [2019-01-01 23:09:01,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:01,890 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 23:09:01,893 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:01,894 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:01,939 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:01,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:01,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:01,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:01,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:01,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-01-01 23:09:01,985 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:01,985 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:01,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:01,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:01,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:02,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:02,001 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-01-01 23:09:02,002 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:02,002 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:02,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:02,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:02,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:02,133 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:09:02,134 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:09:02,135 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:09:02,135 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:09:02,135 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 23:09:02,136 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:02,136 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:09:02,136 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:09:02,136 INFO L131 ssoRankerPreferences]: Filename of dumped script: gj2007_true-unreach-call_true-termination.c.i_Iteration1_Loop [2019-01-01 23:09:02,136 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:09:02,137 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:09:02,163 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:02,373 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:09:02,374 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 [2019-01-01 23:09:02,381 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:09:02,382 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 23:09:02,425 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 23:09:02,425 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:09:02,450 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 23:09:02,452 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:09:02,452 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:09:02,453 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:09:02,453 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:09:02,453 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 23:09:02,453 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:02,453 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:09:02,454 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:09:02,454 INFO L131 ssoRankerPreferences]: Filename of dumped script: gj2007_true-unreach-call_true-termination.c.i_Iteration1_Loop [2019-01-01 23:09:02,454 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:09:02,454 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:09:02,455 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:02,502 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:09:02,507 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 23:09:02,508 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:09:02,510 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:09:02,510 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:09:02,511 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:09:02,511 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:09:02,511 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:09:02,515 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:09:02,515 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:09:02,524 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 23:09:02,532 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 23:09:02,532 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 23:09:02,535 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 23:09:02,535 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 23:09:02,536 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 23:09:02,537 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 99 Supporting invariants [] [2019-01-01 23:09:02,539 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 23:09:02,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:09:02,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:09:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:09:02,709 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:09:02,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:09:02,729 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-01-01 23:09:02,730 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2019-01-01 23:09:02,907 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 30 states and 41 transitions. Complement of second has 5 states. [2019-01-01 23:09:02,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 23:09:02,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 23:09:02,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 23 transitions. [2019-01-01 23:09:02,916 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-01 23:09:02,918 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:02,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-01 23:09:02,920 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:02,920 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 23 transitions. Stem has 1 letters. Loop has 4 letters. [2019-01-01 23:09:02,921 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:02,922 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 30 states and 41 transitions. [2019-01-01 23:09:02,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 23:09:02,937 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 30 states to 8 states and 11 transitions. [2019-01-01 23:09:02,940 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-01 23:09:02,941 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-01 23:09:02,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-01-01 23:09:02,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 23:09:02,943 INFO L705 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-01-01 23:09:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-01-01 23:09:02,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-01-01 23:09:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-01 23:09:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-01-01 23:09:02,983 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 23:09:02,984 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 23:09:02,984 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 23:09:02,984 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-01-01 23:09:02,984 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 23:09:02,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 23:09:02,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 23:09:02,987 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-01 23:09:02,987 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 23:09:02,987 INFO L794 eck$LassoCheckResult]: Stem: 72#ULTIMATE.startENTRY havoc main_#res;havoc main_~x~0, main_~y~0;main_~x~0 := 0;main_~y~0 := 50; 73#L14-2 assume !!(main_~x~0 < 100); 75#L14 [2019-01-01 23:09:02,987 INFO L796 eck$LassoCheckResult]: Loop: 75#L14 assume !(main_~x~0 < 50);main_~x~0 := 1 + main_~x~0;main_~y~0 := 1 + main_~y~0; 74#L14-2 assume !!(main_~x~0 < 100); 75#L14 [2019-01-01 23:09:02,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:02,988 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-01-01 23:09:02,989 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:02,989 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:02,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:02,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:02,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:02,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:02,999 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-01-01 23:09:03,000 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:03,000 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:03,002 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:03,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:03,003 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:03,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 23:09:03,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:03,021 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-01-01 23:09:03,021 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 23:09:03,021 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 23:09:03,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:03,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 23:09:03,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 23:09:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:09:03,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:09:03,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-01 23:09:03,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-01-01 23:09:03,128 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:09:03,128 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:09:03,128 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:09:03,128 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:09:03,128 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 23:09:03,129 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:03,129 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:09:03,129 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:09:03,129 INFO L131 ssoRankerPreferences]: Filename of dumped script: gj2007_true-unreach-call_true-termination.c.i_Iteration2_Loop [2019-01-01 23:09:03,130 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:09:03,130 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:09:03,132 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:03,137 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:03,275 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:09:03,275 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2019-01-01 23:09:03,279 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:09:03,279 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) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:03,303 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 23:09:03,303 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:09:03,321 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 23:09:03,321 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~y~0=2}, {ULTIMATE.start_main_~y~0=1}, {ULTIMATE.start_main_~y~0=-2}] Lambdas: [1, 1, 1] 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) [2019-01-01 23:09:03,357 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 23:09:03,358 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 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 [2019-01-01 23:09:03,395 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 23:09:03,395 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 23:09:03,431 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 23:09:03,433 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 23:09:03,433 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 23:09:03,433 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 23:09:03,433 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 23:09:03,434 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 23:09:03,434 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 23:09:03,434 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 23:09:03,434 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 23:09:03,435 INFO L131 ssoRankerPreferences]: Filename of dumped script: gj2007_true-unreach-call_true-termination.c.i_Iteration2_Loop [2019-01-01 23:09:03,435 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 23:09:03,435 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 23:09:03,436 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:03,441 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 23:09:03,637 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 23:09:03,638 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 23:09:03,638 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:09:03,639 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:09:03,639 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:09:03,640 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:09:03,640 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:09:03,640 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:09:03,643 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:09:03,643 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:09:03,648 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 23:09:03,649 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 23:09:03,650 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 23:09:03,650 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 23:09:03,650 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 23:09:03,650 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 23:09:03,650 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 23:09:03,651 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 23:09:03,651 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 23:09:03,661 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 23:09:03,666 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 23:09:03,666 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 23:09:03,667 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 23:09:03,667 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 23:09:03,667 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 23:09:03,667 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 197 Supporting invariants [] [2019-01-01 23:09:03,669 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 23:09:03,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 23:09:03,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:09:03,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:09:03,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 23:09:03,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 23:09:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 23:09:03,763 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 23:09:03,763 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-01-01 23:09:03,856 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 15 states and 21 transitions. Complement of second has 6 states. [2019-01-01 23:09:03,858 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-01-01 23:09:03,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 23:09:03,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 8 transitions. [2019-01-01 23:09:03,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-01 23:09:03,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:03,860 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 4 letters. Loop has 2 letters. [2019-01-01 23:09:03,860 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:03,861 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 8 transitions. Stem has 2 letters. Loop has 4 letters. [2019-01-01 23:09:03,861 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 23:09:03,861 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 21 transitions. [2019-01-01 23:09:03,864 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:09:03,864 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2019-01-01 23:09:03,864 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 23:09:03,865 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 23:09:03,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 23:09:03,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:09:03,865 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:09:03,865 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:09:03,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-01 23:09:03,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-01 23:09:03,872 INFO L87 Difference]: Start difference. First operand 0 states and 0 transitions. Second operand 3 states. [2019-01-01 23:09:03,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-01 23:09:03,876 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2019-01-01 23:09:03,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-01-01 23:09:03,876 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 0 states and 0 transitions. [2019-01-01 23:09:03,877 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:09:03,877 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 0 states to 0 states and 0 transitions. [2019-01-01 23:09:03,877 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 23:09:03,877 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 23:09:03,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 23:09:03,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 23:09:03,877 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:09:03,878 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:09:03,878 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 23:09:03,878 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 23:09:03,878 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 23:09:03,878 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 23:09:03,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 23:09:03,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 11:09:03 BoogieIcfgContainer [2019-01-01 23:09:03,889 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 23:09:03,889 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 23:09:03,889 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 23:09:03,890 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 23:09:03,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 11:09:01" (3/4) ... [2019-01-01 23:09:03,894 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 23:09:03,894 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 23:09:03,895 INFO L168 Benchmark]: Toolchain (without parser) took 2945.21 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 948.7 MB in the beginning and 996.1 MB in the end (delta: -47.4 MB). Peak memory consumption was 71.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:09:03,897 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:09:03,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 23:09:03,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.43 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:09:03,900 INFO L168 Benchmark]: Boogie Preprocessor took 38.81 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:09:03,901 INFO L168 Benchmark]: RCFGBuilder took 305.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. [2019-01-01 23:09:03,902 INFO L168 Benchmark]: BuchiAutomizer took 2244.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.1 MB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. [2019-01-01 23:09:03,903 INFO L168 Benchmark]: Witness Printer took 4.73 ms. Allocated memory is still 1.1 GB. Free memory is still 996.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 23:09:03,908 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 305.19 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 41.43 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.81 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 305.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 24.8 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2244.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 996.1 MB in the end (delta: 107.1 MB). Peak memory consumption was 107.1 MB. Max. memory is 11.5 GB. * Witness Printer took 4.73 ms. Allocated memory is still 1.1 GB. Free memory is still 996.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * x + 99 and consists of 4 locations. One deterministic module has affine ranking function -2 * x + 197 and consists of 4 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 2. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 7 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT1 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital14 mio100 ax100 hnf97 lsp86 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq153 hnf94 smp100 dnf100 smp100 tf112 neg100 sie110 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 28ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 2 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...