./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 02:14:22,875 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:14:22,877 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:14:22,889 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:14:22,889 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:14:22,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:14:22,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:14:22,894 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:14:22,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:14:22,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:14:22,898 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:14:22,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:14:22,900 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:14:22,901 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:14:22,902 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:14:22,903 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:14:22,904 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:14:22,906 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:14:22,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:14:22,911 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:14:22,912 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:14:22,914 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:14:22,917 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:14:22,917 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:14:22,918 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:14:22,919 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:14:22,920 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:14:22,922 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:14:22,922 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:14:22,924 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:14:22,924 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:14:22,926 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:14:22,926 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:14:22,926 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:14:22,927 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:14:22,928 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:14:22,929 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:14:22,946 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:14:22,946 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:14:22,947 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:14:22,948 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:14:22,948 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:14:22,948 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:14:22,948 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:14:22,948 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:14:22,949 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:14:22,949 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:14:22,950 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:14:22,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:14:22,950 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:14:22,950 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:14:22,950 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:14:22,951 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:14:22,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:14:22,953 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:14:22,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:14:22,953 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:14:22,954 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:14:22,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:14:22,954 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:14:22,955 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:14:22,956 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7d1dab681440b8e4fbe52aab1c781a8a0ad5fbc [2019-01-14 02:14:22,992 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:14:23,009 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:14:23,016 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:14:23,018 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:14:23,019 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:14:23,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 02:14:23,090 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dfa1b7f/5d31c160afa34e77b70cec5ba6ea6ef4/FLAG107cfebf7 [2019-01-14 02:14:23,485 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:14:23,486 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 02:14:23,492 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dfa1b7f/5d31c160afa34e77b70cec5ba6ea6ef4/FLAG107cfebf7 [2019-01-14 02:14:23,888 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7dfa1b7f/5d31c160afa34e77b70cec5ba6ea6ef4 [2019-01-14 02:14:23,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:14:23,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:14:23,897 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:23,897 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:14:23,904 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:14:23,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:23" (1/1) ... [2019-01-14 02:14:23,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bac3717 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:23, skipping insertion in model container [2019-01-14 02:14:23,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:23" (1/1) ... [2019-01-14 02:14:23,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:14:23,943 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:14:24,165 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:24,169 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:14:24,187 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:24,205 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:14:24,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24 WrapperNode [2019-01-14 02:14:24,205 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:24,206 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:24,206 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:14:24,207 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:14:24,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:24,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:14:24,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:14:24,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:14:24,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... [2019-01-14 02:14:24,273 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:14:24,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:14:24,274 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:14:24,274 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:14:24,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:24,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:14:24,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:14:24,656 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:14:24,656 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:14:24,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:24 BoogieIcfgContainer [2019-01-14 02:14:24,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:14:24,659 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:14:24,660 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:14:24,665 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:14:24,666 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:24,666 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:14:23" (1/3) ... [2019-01-14 02:14:24,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0aa342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:24, skipping insertion in model container [2019-01-14 02:14:24,668 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:24,669 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:24" (2/3) ... [2019-01-14 02:14:24,670 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7f0aa342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:24, skipping insertion in model container [2019-01-14 02:14:24,671 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:24,671 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:24" (3/3) ... [2019-01-14 02:14:24,672 INFO L375 chiAutomizerObserver]: Analyzing ICFG Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c [2019-01-14 02:14:24,747 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:14:24,747 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:14:24,748 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:14:24,748 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:14:24,748 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:14:24,748 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:14:24,748 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:14:24,749 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:14:24,749 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:14:24,765 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:14:24,792 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:14:24,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:24,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:24,803 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:24,803 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:14:24,803 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:14:24,803 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-01-14 02:14:24,805 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2019-01-14 02:14:24,805 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:24,805 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:24,806 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:24,806 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1] [2019-01-14 02:14:24,816 INFO L794 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~x~0;havoc main_~x~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0; 3#L15true assume main_~x~0 > 0; 7#L16-2true [2019-01-14 02:14:24,816 INFO L796 eck$LassoCheckResult]: Loop: 7#L16-2true assume !!(0 != main_~x~0 && -1 != main_~x~0);main_~x~0 := main_~x~0 - 2; 7#L16-2true [2019-01-14 02:14:24,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:24,825 INFO L82 PathProgramCache]: Analyzing trace with hash 996, now seen corresponding path program 1 times [2019-01-14 02:14:24,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:24,828 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:24,892 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:24,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:24,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:24,940 INFO L82 PathProgramCache]: Analyzing trace with hash 44, now seen corresponding path program 1 times [2019-01-14 02:14:24,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:24,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:24,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:24,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:24,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:24,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:24,958 INFO L82 PathProgramCache]: Analyzing trace with hash 30889, now seen corresponding path program 1 times [2019-01-14 02:14:24,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:24,958 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:24,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:24,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:24,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:25,162 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:14:25,163 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:14:25,164 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:14:25,164 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:14:25,164 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:14:25,165 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:25,165 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:14:25,165 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:14:25,165 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Loop [2019-01-14 02:14:25,165 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:14:25,166 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:14:25,190 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:25,237 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:25,278 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:25,398 WARN L181 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-14 02:14:25,921 WARN L181 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-01-14 02:14:25,929 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:14:25,930 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:25,938 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:25,938 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:25,964 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:25,964 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:25,971 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:25,971 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,010 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,010 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,016 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,016 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 [2019-01-14 02:14:26,044 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:14:26,044 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,069 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,069 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=-8} Honda state: {ULTIMATE.start_main_~x~0=-8} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [0, 1, 8] Nus: [1, 0] [2019-01-14 02:14:26,121 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:14:26,121 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:14:26,121 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:14:26,121 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:14:26,122 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:14:26,122 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,122 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:14:26,122 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:14:26,122 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2019-01-14 02:14:26,122 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:14:26,123 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:14:26,125 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,152 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,162 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,170 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,176 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,470 WARN L181 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-01-14 02:14:26,471 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:14:26,471 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,479 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,479 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,482 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,482 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet0=0} Honda state: {ULTIMATE.start_main_#t~nondet0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,503 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,503 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,524 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,525 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_2=0} Honda state: {v_rep~unnamed0~0~false_2=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 02:14:26,533 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,533 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,562 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,562 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_2=1} Honda state: {v_rep~unnamed0~0~true_2=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,567 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,568 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,574 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:26,574 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#res=0} Honda state: {ULTIMATE.start_main_#res=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,595 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:26,595 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,620 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:14:26,620 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:26,649 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 02:14:26,651 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:14:26,652 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:14:26,652 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:14:26,652 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:14:26,652 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:14:26,652 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:26,652 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:14:26,653 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:14:26,653 INFO L131 ssoRankerPreferences]: Filename of dumped script: Cairo_step2_true-no-overflow_true-termination_true-valid-memsafety.c_Iteration1_Lasso [2019-01-14 02:14:26,653 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:14:26,653 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:14:26,660 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,669 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,686 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:26,710 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:27,347 WARN L181 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 16 [2019-01-14 02:14:27,367 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:14:27,373 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:14:27,375 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:27,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:27,378 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:27,378 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:27,378 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:27,384 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:14:27,384 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:14:27,392 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:14:27,393 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:27,394 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:27,395 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:27,395 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:27,395 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:27,398 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:14:27,399 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:14:27,407 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:14:27,408 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:27,409 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:27,409 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:14:27,410 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:27,411 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:27,411 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:27,412 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:14:27,412 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:14:27,414 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:14:27,415 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:27,415 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:27,415 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:27,417 INFO L206 nArgumentSynthesizer]: 2 loop disjuncts [2019-01-14 02:14:27,417 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:27,426 INFO L402 nArgumentSynthesizer]: We have 16 Motzkin's Theorem applications. [2019-01-14 02:14:27,426 INFO L403 nArgumentSynthesizer]: A total of 4 supporting invariants were added. [2019-01-14 02:14:27,569 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:14:27,651 INFO L443 ModelExtractionUtils]: Simplification made 6 calls to the SMT solver. [2019-01-14 02:14:27,654 INFO L444 ModelExtractionUtils]: 2 out of 11 variables were initially zero. Simplification set additionally 5 variables to zero. [2019-01-14 02:14:27,656 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:14:27,673 INFO L440 nArgumentSynthesizer]: Removed 3 redundant supporting invariants from a total of 4. [2019-01-14 02:14:27,673 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:14:27,674 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [1*ULTIMATE.start_main_~x~0 + 1 >= 0] [2019-01-14 02:14:27,701 INFO L297 tatePredicateManager]: 0 out of 1 supporting invariants were superfluous and have been removed [2019-01-14 02:14:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:14:27,828 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:14:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:14:27,861 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:14:27,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:14:27,876 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 1 loop predicates [2019-01-14 02:14:27,877 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 2 states. [2019-01-14 02:14:28,010 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 2 states. Result 20 states and 23 transitions. Complement of second has 5 states. [2019-01-14 02:14:28,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-14 02:14:28,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2019-01-14 02:14:28,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 15 transitions. [2019-01-14 02:14:28,018 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 1 letters. [2019-01-14 02:14:28,020 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:28,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 3 letters. Loop has 1 letters. [2019-01-14 02:14:28,021 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:28,021 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 15 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-14 02:14:28,022 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:28,023 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 23 transitions. [2019-01-14 02:14:28,027 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:14:28,030 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 0 states and 0 transitions. [2019-01-14 02:14:28,032 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:14:28,032 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:14:28,032 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:14:28,033 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:14:28,034 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:28,034 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:28,034 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:28,034 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:14:28,034 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:14:28,034 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:14:28,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:14:28,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:14:28 BoogieIcfgContainer [2019-01-14 02:14:28,044 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:14:28,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:14:28,044 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:14:28,045 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:14:28,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:24" (3/4) ... [2019-01-14 02:14:28,051 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:14:28,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:14:28,053 INFO L168 Benchmark]: Toolchain (without parser) took 4158.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 942.0 MB in the beginning and 976.5 MB in the end (delta: -34.5 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:28,055 INFO L168 Benchmark]: CDTParser took 0.20 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 02:14:28,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.07 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:28,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.69 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:28,057 INFO L168 Benchmark]: Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:28,058 INFO L168 Benchmark]: RCFGBuilder took 385.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:28,060 INFO L168 Benchmark]: BuchiAutomizer took 3384.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 156.6 MB). Peak memory consumption was 156.6 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:28,061 INFO L168 Benchmark]: Witness Printer took 6.97 ms. Allocated memory is still 1.2 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:28,066 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 309.07 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 931.2 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 41.69 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.84 ms. Allocated memory is still 1.0 GB. Free memory is still 931.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 385.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -201.8 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 3384.50 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.5 MB in the end (delta: 156.6 MB). Peak memory consumption was 156.6 MB. Max. memory is 11.5 GB. * Witness Printer took 6.97 ms. Allocated memory is still 1.2 GB. Free memory is still 976.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 2.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 9 SDtfs, 9 SDslu, 3 SDs, 0 SdLazy, 3 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso1 LassoPreprocessingBenchmarks: Lassos: inital16 mio100 ax177 hnf106 lsp59 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq187 hnf97 smp100 dnf262 smp40 tf101 neg94 sie115 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 258ms VariablesStem: 1 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 4 MotzkinApplications: 16 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 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...