./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-restricted-15/NO_21_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 91b1670e 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-restricted-15/NO_21_false-termination_true-no-overflow.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 012f84fd0ea677a0f91b2a112c75e9cee95427f9 .............................................................................................................................................................................................................................................................. 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 0.1.24-91b1670 [2018-11-28 23:17:19,881 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 23:17:19,884 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 23:17:19,902 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 23:17:19,903 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 23:17:19,904 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 23:17:19,906 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 23:17:19,909 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 23:17:19,911 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 23:17:19,914 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 23:17:19,916 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 23:17:19,917 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 23:17:19,918 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 23:17:19,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 23:17:19,930 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 23:17:19,931 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 23:17:19,932 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 23:17:19,933 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 23:17:19,940 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 23:17:19,942 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 23:17:19,943 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 23:17:19,944 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 23:17:19,947 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 23:17:19,947 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 23:17:19,947 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 23:17:19,949 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 23:17:19,950 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 23:17:19,950 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 23:17:19,952 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 23:17:19,953 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 23:17:19,953 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 23:17:19,954 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 23:17:19,954 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 23:17:19,954 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 23:17:19,955 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 23:17:19,957 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 23:17:19,957 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2018-11-28 23:17:19,973 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 23:17:19,973 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 23:17:19,975 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 23:17:19,975 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 23:17:19,975 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 23:17:19,976 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2018-11-28 23:17:19,976 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2018-11-28 23:17:19,976 INFO L133 SettingsManager]: * Use old map elimination=false [2018-11-28 23:17:19,976 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2018-11-28 23:17:19,976 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2018-11-28 23:17:19,976 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2018-11-28 23:17:19,977 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 23:17:19,977 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 23:17:19,977 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 23:17:19,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 23:17:19,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2018-11-28 23:17:19,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2018-11-28 23:17:19,979 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2018-11-28 23:17:19,980 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 23:17:19,982 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2018-11-28 23:17:19,982 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 23:17:19,982 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2018-11-28 23:17:19,982 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 23:17:19,983 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 23:17:19,984 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2018-11-28 23:17:19,984 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 23:17:19,985 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 23:17:19,985 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2018-11-28 23:17:19,990 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-11-28 23:17:19,990 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 -> 012f84fd0ea677a0f91b2a112c75e9cee95427f9 [2018-11-28 23:17:20,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 23:17:20,048 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 23:17:20,055 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 23:17:20,057 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 23:17:20,057 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 23:17:20,058 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-restricted-15/NO_21_false-termination_true-no-overflow.c [2018-11-28 23:17:20,122 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733b17d87/c9b4280154654f9abf4c820af4cfb6ef/FLAG10db9e439 [2018-11-28 23:17:20,554 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 23:17:20,555 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-restricted-15/NO_21_false-termination_true-no-overflow.c [2018-11-28 23:17:20,561 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733b17d87/c9b4280154654f9abf4c820af4cfb6ef/FLAG10db9e439 [2018-11-28 23:17:20,935 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/733b17d87/c9b4280154654f9abf4c820af4cfb6ef [2018-11-28 23:17:20,939 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 23:17:20,941 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 23:17:20,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:20,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 23:17:20,946 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 23:17:20,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:20" (1/1) ... [2018-11-28 23:17:20,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d24169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:20, skipping insertion in model container [2018-11-28 23:17:20,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:17:20" (1/1) ... [2018-11-28 23:17:20,964 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 23:17:20,984 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 23:17:21,237 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:21,246 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 23:17:21,266 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 23:17:21,290 INFO L195 MainTranslator]: Completed translation [2018-11-28 23:17:21,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21 WrapperNode [2018-11-28 23:17:21,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 23:17:21,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:21,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 23:17:21,292 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 23:17:21,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,338 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 23:17:21,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 23:17:21,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 23:17:21,339 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 23:17:21,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,350 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,351 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,351 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (1/1) ... [2018-11-28 23:17:21,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 23:17:21,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 23:17:21,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 23:17:21,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 23:17:21,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (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 [2018-11-28 23:17:21,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 23:17:21,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 23:17:21,645 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 23:17:21,646 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-11-28 23:17:21,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21 BoogieIcfgContainer [2018-11-28 23:17:21,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 23:17:21,647 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2018-11-28 23:17:21,647 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2018-11-28 23:17:21,651 INFO L276 PluginConnector]: BuchiAutomizer initialized [2018-11-28 23:17:21,651 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,652 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 11:17:20" (1/3) ... [2018-11-28 23:17:21,653 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bac2a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:21, skipping insertion in model container [2018-11-28 23:17:21,653 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,653 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:17:21" (2/3) ... [2018-11-28 23:17:21,654 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@bac2a22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 11:17:21, skipping insertion in model container [2018-11-28 23:17:21,654 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2018-11-28 23:17:21,654 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21" (3/3) ... [2018-11-28 23:17:21,656 INFO L375 chiAutomizerObserver]: Analyzing ICFG NO_21_false-termination_true-no-overflow.c [2018-11-28 23:17:21,718 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 23:17:21,719 INFO L374 BuchiCegarLoop]: Interprodecural is true [2018-11-28 23:17:21,719 INFO L375 BuchiCegarLoop]: Hoare is false [2018-11-28 23:17:21,719 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2018-11-28 23:17:21,720 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 23:17:21,720 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 23:17:21,720 INFO L379 BuchiCegarLoop]: Difference is false [2018-11-28 23:17:21,720 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 23:17:21,720 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2018-11-28 23:17:21,736 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:17:21,759 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:21,760 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:21,760 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:21,767 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:21,767 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:21,768 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2018-11-28 23:17:21,768 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 6 states. [2018-11-28 23:17:21,769 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 1 [2018-11-28 23:17:21,769 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2018-11-28 23:17:21,769 INFO L119 BuchiIsEmpty]: Starting construction of run [2018-11-28 23:17:21,770 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2018-11-28 23:17:21,770 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1] [2018-11-28 23:17:21,779 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_~i~0;havoc main_~i~0;main_~i~0 := 0; 5#L9-2true [2018-11-28 23:17:21,779 INFO L796 eck$LassoCheckResult]: Loop: 5#L9-2true assume !!(main_~i~0 < 100);main_~i~0 := 1 + main_~i~0;main_~i~0 := main_~i~0 - 1; 5#L9-2true [2018-11-28 23:17:21,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:21,786 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2018-11-28 23:17:21,788 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:21,789 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:21,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:21,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:21,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:21,886 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:21,886 INFO L82 PathProgramCache]: Analyzing trace with hash 41, now seen corresponding path program 1 times [2018-11-28 23:17:21,886 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:21,886 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:21,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:21,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:21,901 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 23:17:21,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1002, now seen corresponding path program 1 times [2018-11-28 23:17:21,901 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 23:17:21,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 23:17:21,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 23:17:21,904 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 23:17:21,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 23:17:22,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 11:17:22 BoogieIcfgContainer [2018-11-28 23:17:22,126 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2018-11-28 23:17:22,127 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 23:17:22,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 23:17:22,127 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 23:17:22,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:17:21" (3/4) ... [2018-11-28 23:17:22,130 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2018-11-28 23:17:22,170 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 23:17:22,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 23:17:22,172 INFO L168 Benchmark]: Toolchain (without parser) took 1231.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -114.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:22,174 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:22,174 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:22,175 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.88 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:22,176 INFO L168 Benchmark]: Boogie Preprocessor took 22.44 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:22,176 INFO L168 Benchmark]: RCFGBuilder took 285.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:22,177 INFO L168 Benchmark]: BuchiAutomizer took 479.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-11-28 23:17:22,178 INFO L168 Benchmark]: Witness Printer took 44.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 23:17:22,183 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.03 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 46.88 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.44 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 285.16 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -147.6 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 479.35 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * Witness Printer took 44.15 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.4s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 0.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 0. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: No data available LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 9]: 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 {\result=0, i=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 9]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L6] int i; [L7] i = 0 Loop: [L9] COND TRUE i < 100 [L10] i = i+1 [L11] i = i-1 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...