./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-restricted-15/WhilePart.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/termination-restricted-15/WhilePart.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 0243e777c754f4d015f916e05482f6a7188e03cf ............................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-11-28 20:31:30,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:31:30,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:31:30,827 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:31:30,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:31:30,830 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:31:30,832 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:31:30,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:31:30,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:31:30,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:31:30,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:31:30,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:31:30,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:31:30,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:31:30,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:31:30,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:31:30,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:31:30,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:31:30,870 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:31:30,875 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:31:30,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:31:30,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:31:30,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:31:30,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:31:30,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:31:30,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:31:30,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:31:30,893 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:31:30,894 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:31:30,895 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:31:30,895 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:31:30,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:31:30,897 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:31:30,897 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:31:30,899 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:31:30,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:31:30,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:31:30,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:31:30,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:31:30,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:31:30,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:31:30,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-11-28 20:31:30,932 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:31:30,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:31:30,934 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:31:30,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:31:30,935 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:31:30,935 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:31:30,936 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:31:30,936 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:31:30,936 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:31:30,936 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:31:30,937 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:31:30,938 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:31:30,938 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:31:30,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:31:30,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:31:30,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:31:30,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:31:30,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:31:30,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:31:30,939 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:31:30,940 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:31:30,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:31:30,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:31:30,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:31:30,940 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:31:30,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:31:30,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:31:30,941 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:31:30,941 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:31:30,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:31:30,943 INFO L138 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 -> 0243e777c754f4d015f916e05482f6a7188e03cf [2019-11-28 20:31:31,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:31:31,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:31:31,262 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:31:31,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:31:31,265 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:31:31,266 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-restricted-15/WhilePart.c [2019-11-28 20:31:31,336 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1db7eb3f/3ca4eb299e2e46fd999349edafafddc7/FLAG89be74755 [2019-11-28 20:31:31,777 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:31:31,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-restricted-15/WhilePart.c [2019-11-28 20:31:31,785 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1db7eb3f/3ca4eb299e2e46fd999349edafafddc7/FLAG89be74755 [2019-11-28 20:31:32,174 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c1db7eb3f/3ca4eb299e2e46fd999349edafafddc7 [2019-11-28 20:31:32,177 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:31:32,179 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:31:32,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:32,180 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:31:32,183 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:31:32,184 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bf01ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32, skipping insertion in model container [2019-11-28 20:31:32,187 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,195 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:31:32,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:31:32,441 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:32,448 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:31:32,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:31:32,484 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:31:32,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32 WrapperNode [2019-11-28 20:31:32,485 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:31:32,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:32,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:31:32,487 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:31:32,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,504 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,582 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:31:32,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:31:32,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:31:32,583 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:31:32,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (1/1) ... [2019-11-28 20:31:32,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:31:32,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:31:32,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:31:32,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:31:32,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (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 [2019-11-28 20:31:32,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:31:32,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:31:32,800 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:31:32,800 INFO L287 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-28 20:31:32,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:32 BoogieIcfgContainer [2019-11-28 20:31:32,801 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:31:32,802 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:31:32,802 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:31:32,805 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:31:32,805 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:32,806 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:31:32" (1/3) ... [2019-11-28 20:31:32,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c83e1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:32, skipping insertion in model container [2019-11-28 20:31:32,807 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:32,807 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:31:32" (2/3) ... [2019-11-28 20:31:32,807 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5c83e1f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:31:32, skipping insertion in model container [2019-11-28 20:31:32,808 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:31:32,808 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:32" (3/3) ... [2019-11-28 20:31:32,809 INFO L371 chiAutomizerObserver]: Analyzing ICFG WhilePart.c [2019-11-28 20:31:32,859 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:31:32,859 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:31:32,859 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:31:32,859 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:31:32,859 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:31:32,860 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:31:32,860 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:31:32,860 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:31:32,874 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:32,894 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:32,894 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:32,895 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:32,902 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:32,902 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:32,902 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:31:32,902 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states. [2019-11-28 20:31:32,903 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:32,903 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:32,903 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:32,904 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-11-28 20:31:32,904 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:32,912 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 8#L10-2true [2019-11-28 20:31:32,913 INFO L796 eck$LassoCheckResult]: Loop: 8#L10-2true assume !!(main_~i~0 > 5); 4#L10true assume main_~i~0 < 10;main_~i~0 := main_~i~0 - 1; 8#L10-2true [2019-11-28 20:31:32,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:32,919 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-11-28 20:31:32,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:32,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481848842] [2019-11-28 20:31:32,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,030 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-11-28 20:31:33,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:33,033 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876264166] [2019-11-28 20:31:33,033 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,049 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,051 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-11-28 20:31:33,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:33,051 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396963913] [2019-11-28 20:31:33,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,064 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,145 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:33,146 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:33,147 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:33,147 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:33,147 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2019-11-28 20:31:33,148 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,148 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:33,148 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:33,148 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhilePart.c_Iteration1_Loop [2019-11-28 20:31:33,149 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:33,149 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:33,183 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,231 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,236 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,338 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:33,339 INFO L404 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 [2019-11-28 20:31:33,347 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:33,348 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:33,360 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:33,360 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2019-11-28 20:31:33,377 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:33,377 INFO L160 nArgumentSynthesizer]: Using integer mode. [2019-11-28 20:31:33,382 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2019-11-28 20:31:33,383 INFO L440 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 [2019-11-28 20:31:33,398 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-11-28 20:31:33,398 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:33,418 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-11-28 20:31:33,419 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,427 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-11-28 20:31:33,430 INFO L210 LassoAnalysis]: Preferences: [2019-11-28 20:31:33,430 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2019-11-28 20:31:33,431 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-11-28 20:31:33,431 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2019-11-28 20:31:33,431 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2019-11-28 20:31:33,431 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,432 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2019-11-28 20:31:33,432 INFO L132 ssoRankerPreferences]: Path of dumped script: [2019-11-28 20:31:33,432 INFO L133 ssoRankerPreferences]: Filename of dumped script: WhilePart.c_Iteration1_Loop [2019-11-28 20:31:33,433 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2019-11-28 20:31:33,433 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2019-11-28 20:31:33,435 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,440 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,445 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-11-28 20:31:33,522 INFO L292 LassoAnalysis]: Preprocessing complete. [2019-11-28 20:31:33,527 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2019-11-28 20:31:33,547 INFO L120 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 [2019-11-28 20:31:33,550 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:33,550 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:33,551 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:33,551 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:33,557 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:33,558 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,568 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:33,578 INFO L120 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 [2019-11-28 20:31:33,580 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:33,581 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:33,581 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:33,581 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:33,592 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-11-28 20:31:33,592 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,603 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-11-28 20:31:33,618 INFO L120 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 [2019-11-28 20:31:33,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2019-11-28 20:31:33,620 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-11-28 20:31:33,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2019-11-28 20:31:33,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2019-11-28 20:31:33,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2019-11-28 20:31:33,624 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-11-28 20:31:33,625 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,633 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-11-28 20:31:33,640 INFO L443 ModelExtractionUtils]: Simplification made 2 calls to the SMT solver. [2019-11-28 20:31:33,640 INFO L444 ModelExtractionUtils]: 1 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. 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) [2019-11-28 20:31:33,649 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-11-28 20:31:33,649 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-11-28 20:31:33,650 INFO L510 LassoAnalysis]: Proved termination. [2019-11-28 20:31:33,650 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2019-11-28 20:31:33,657 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 20:31:33,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:33,701 WARN L262 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-28 20:31:33,702 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:31:33,712 WARN L262 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-28 20:31:33,712 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-11-28 20:31:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 20:31:33,743 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 [2019-11-28 20:31:33,745 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states. Second operand 3 states. [2019-11-28 20:31:33,798 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states.. Second operand 3 states. Result 20 states and 28 transitions. Complement of second has 7 states. [2019-11-28 20:31:33,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2019-11-28 20:31:33,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-11-28 20:31:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 15 transitions. [2019-11-28 20:31:33,803 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 2 letters. [2019-11-28 20:31:33,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:33,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 3 letters. Loop has 2 letters. [2019-11-28 20:31:33,805 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:33,805 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 15 transitions. Stem has 1 letters. Loop has 4 letters. [2019-11-28 20:31:33,806 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-11-28 20:31:33,807 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 20 states and 28 transitions. [2019-11-28 20:31:33,809 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:33,813 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 20 states to 8 states and 11 transitions. [2019-11-28 20:31:33,814 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-11-28 20:31:33,815 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-11-28 20:31:33,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 11 transitions. [2019-11-28 20:31:33,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-11-28 20:31:33,815 INFO L688 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-11-28 20:31:33,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states and 11 transitions. [2019-11-28 20:31:33,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2019-11-28 20:31:33,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-11-28 20:31:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-11-28 20:31:33,837 INFO L711 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:33,837 INFO L591 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-11-28 20:31:33,837 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:31:33,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-11-28 20:31:33,838 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-11-28 20:31:33,838 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:31:33,838 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:31:33,839 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:31:33,839 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-11-28 20:31:33,839 INFO L794 eck$LassoCheckResult]: Stem: 68#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_~i~0;havoc main_~i~0;main_~i~0 := main_#t~nondet0;havoc main_#t~nondet0; 69#L10-2 assume !!(main_~i~0 > 5); 63#L10 [2019-11-28 20:31:33,839 INFO L796 eck$LassoCheckResult]: Loop: 63#L10 assume !(main_~i~0 < 10); 64#L10-2 assume !!(main_~i~0 > 5); 63#L10 [2019-11-28 20:31:33,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2019-11-28 20:31:33,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:33,840 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032503609] [2019-11-28 20:31:33,840 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,847 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1436, now seen corresponding path program 1 times [2019-11-28 20:31:33,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:33,848 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102216956] [2019-11-28 20:31:33,848 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,859 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:31:33,860 INFO L82 PathProgramCache]: Analyzing trace with hash 963397, now seen corresponding path program 1 times [2019-11-28 20:31:33,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:31:33,861 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196227359] [2019-11-28 20:31:33,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:31:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:31:33,871 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:31:33,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:31:33 BoogieIcfgContainer [2019-11-28 20:31:33,926 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:31:33,928 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:31:33,928 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:31:33,928 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:31:33,929 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:31:32" (3/4) ... [2019-11-28 20:31:33,933 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:31:33,994 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:31:33,994 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:31:33,997 INFO L168 Benchmark]: Toolchain (without parser) took 1816.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 956.3 MB in the beginning and 1.0 GB in the end (delta: -51.4 MB). Peak memory consumption was 81.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:33,997 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:33,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:34,002 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:34,003 INFO L168 Benchmark]: Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:34,006 INFO L168 Benchmark]: RCFGBuilder took 198.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:34,007 INFO L168 Benchmark]: BuchiAutomizer took 1124.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:31:34,008 INFO L168 Benchmark]: Witness Printer took 66.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:31:34,019 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.28 ms. Allocated memory is still 1.0 GB. Free memory was 956.3 MB in the beginning and 945.6 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 95.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.2 MB). Free memory was 945.6 MB in the beginning and 1.1 GB in the end (delta: -184.1 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 198.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1124.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.3 MB). Peak memory consumption was 104.3 MB. Max. memory is 11.5 GB. * Witness Printer took 66.09 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. 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) and one nonterminating remainder module.One deterministic module has affine ranking function i and consists of 5 locations. The remainder module has 7 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 3. Minimization of det autom 0. 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 [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 4 SDtfs, 7 SDslu, 6 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital13 mio100 ax192 hnf100 lsp51 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq146 hnf94 smp100 dnf100 smp100 tf111 neg100 sie120 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 39ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 10]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36571e9c=0, \result=0, i=10} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 10]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = __VERIFIER_nondet_int() [L9] COND TRUE i > 5 Loop: [L10] COND FALSE !(i < 10) [L9] COND TRUE i > 5 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...