./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 26479c976733891620a412c0502cdbc3992d9719 ........................................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.24-0ed9222-m [2019-01-14 03:39:24,912 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 03:39:24,914 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 03:39:24,926 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 03:39:24,927 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 03:39:24,928 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 03:39:24,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 03:39:24,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 03:39:24,934 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 03:39:24,935 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 03:39:24,936 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 03:39:24,936 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 03:39:24,938 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 03:39:24,939 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 03:39:24,940 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 03:39:24,941 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 03:39:24,942 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 03:39:24,944 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 03:39:24,947 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 03:39:24,948 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 03:39:24,950 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 03:39:24,951 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 03:39:24,954 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 03:39:24,955 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 03:39:24,955 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 03:39:24,956 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 03:39:24,958 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 03:39:24,959 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 03:39:24,960 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 03:39:24,961 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 03:39:24,961 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 03:39:24,963 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 03:39:24,963 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 03:39:24,963 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 03:39:24,964 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 03:39:24,966 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 03:39:24,966 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-14 03:39:24,984 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 03:39:24,984 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 03:39:24,986 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 03:39:24,986 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 03:39:24,986 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 03:39:24,986 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 03:39:24,986 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 03:39:24,987 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 03:39:24,987 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 03:39:24,987 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 03:39:24,987 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 03:39:24,987 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 03:39:24,988 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 03:39:24,989 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 03:39:24,989 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 03:39:24,989 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 03:39:24,989 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 03:39:24,989 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 03:39:24,990 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 03:39:24,991 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 03:39:24,992 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 03:39:24,992 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 03:39:24,992 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 03:39:24,993 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 03:39:24,993 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 03:39:24,993 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 03:39:24,995 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 03:39:24,995 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26479c976733891620a412c0502cdbc3992d9719 [2019-01-14 03:39:25,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 03:39:25,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 03:39:25,058 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 03:39:25,060 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 03:39:25,060 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 03:39:25,061 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2019-01-14 03:39:25,110 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a1da11b2/266f1fad40f6421b9626907003eb2479/FLAGaddbbc87e [2019-01-14 03:39:25,533 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 03:39:25,533 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/for_infinite_loop_2_true-unreach-call_false-termination.i [2019-01-14 03:39:25,538 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a1da11b2/266f1fad40f6421b9626907003eb2479/FLAGaddbbc87e [2019-01-14 03:39:25,881 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a1da11b2/266f1fad40f6421b9626907003eb2479 [2019-01-14 03:39:25,886 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 03:39:25,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 03:39:25,889 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 03:39:25,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 03:39:25,897 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 03:39:25,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:39:25" (1/1) ... [2019-01-14 03:39:25,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d153cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:25, skipping insertion in model container [2019-01-14 03:39:25,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 03:39:25" (1/1) ... [2019-01-14 03:39:25,912 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 03:39:25,932 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 03:39:26,150 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:39:26,155 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 03:39:26,176 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 03:39:26,195 INFO L195 MainTranslator]: Completed translation [2019-01-14 03:39:26,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26 WrapperNode [2019-01-14 03:39:26,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 03:39:26,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 03:39:26,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 03:39:26,197 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 03:39:26,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 03:39:26,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 03:39:26,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 03:39:26,238 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 03:39:26,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,249 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (1/1) ... [2019-01-14 03:39:26,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 03:39:26,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 03:39:26,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 03:39:26,263 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 03:39:26,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (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 03:39:26,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 03:39:26,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 03:39:26,676 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 03:39:26,676 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-14 03:39:26,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:26 BoogieIcfgContainer [2019-01-14 03:39:26,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 03:39:26,678 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 03:39:26,678 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 03:39:26,682 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 03:39:26,683 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:26,683 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 03:39:25" (1/3) ... [2019-01-14 03:39:26,684 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73dfb214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:39:26, skipping insertion in model container [2019-01-14 03:39:26,684 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:26,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 03:39:26" (2/3) ... [2019-01-14 03:39:26,685 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73dfb214 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 03:39:26, skipping insertion in model container [2019-01-14 03:39:26,685 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 03:39:26,685 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:26" (3/3) ... [2019-01-14 03:39:26,687 INFO L375 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_2_true-unreach-call_false-termination.i [2019-01-14 03:39:26,747 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 03:39:26,748 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 03:39:26,748 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 03:39:26,748 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 03:39:26,748 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 03:39:26,748 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 03:39:26,749 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 03:39:26,749 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 03:39:26,749 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 03:39:26,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-14 03:39:26,821 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 03:39:26,821 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:39:26,822 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:39:26,831 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:39:26,831 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 03:39:26,831 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 03:39:26,831 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 12 states. [2019-01-14 03:39:26,833 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-14 03:39:26,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 03:39:26,834 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 03:39:26,834 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 03:39:26,834 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-01-14 03:39:26,849 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet1, main_#t~post2, main_~i~0, main_~x~0, main_~y~0, main_~n~0;main_~i~0 := 0;main_~x~0 := 0;main_~y~0 := 0;main_~n~0 := main_#t~nondet1;havoc main_#t~nondet1; 12#L14true assume !!(main_~n~0 > 0);main_~i~0 := 0; 10#L15-2true [2019-01-14 03:39:26,849 INFO L796 eck$LassoCheckResult]: Loop: 10#L15-2true assume !false;__VERIFIER_assert_#in~cond := (if 0 == main_~x~0 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 13#L4true assume !(0 == __VERIFIER_assert_~cond); 9#L4-2true main_#t~post2 := main_~i~0;main_~i~0 := 1 + main_#t~post2;havoc main_#t~post2; 10#L15-2true [2019-01-14 03:39:26,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:26,857 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-01-14 03:39:26,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:26,860 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:26,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:26,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:26,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:26,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:26,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:26,974 INFO L82 PathProgramCache]: Analyzing trace with hash 43921, now seen corresponding path program 1 times [2019-01-14 03:39:26,974 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:26,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:26,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:26,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:26,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 03:39:26,994 INFO L82 PathProgramCache]: Analyzing trace with hash 29745548, now seen corresponding path program 1 times [2019-01-14 03:39:26,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 03:39:26,994 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 03:39:26,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:26,995 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 03:39:26,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 03:39:27,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 03:39:27,125 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:39:27,126 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:39:27,126 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:39:27,127 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:39:27,127 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:39:27,127 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:27,127 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:39:27,127 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:39:27,128 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2_true-unreach-call_false-termination.i_Iteration1_Loop [2019-01-14 03:39:27,128 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:39:27,128 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:39:27,151 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 03:39:27,265 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 03:39:27,289 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 03:39:27,531 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:39:27,532 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) [2019-01-14 03:39:27,546 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:27,547 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:27,575 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:27,575 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Honda state: {ULTIMATE.start___VERIFIER_assert_#in~cond=1, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start_main_~x~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 03:39:27,617 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:27,617 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:27,629 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:27,630 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 03:39:27,664 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:27,665 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2019-01-14 03:39:27,712 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:39:27,713 INFO L163 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:27,746 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:27,747 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] [2019-01-14 03:39:27,863 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 03:39:27,863 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 03:39:27,863 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 03:39:27,863 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 03:39:27,864 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 03:39:27,864 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:27,864 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 03:39:27,865 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 03:39:27,865 INFO L131 ssoRankerPreferences]: Filename of dumped script: for_infinite_loop_2_true-unreach-call_false-termination.i_Iteration1_Lasso [2019-01-14 03:39:27,865 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 03:39:27,866 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 03:39:27,868 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 03:39:27,879 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 03:39:27,883 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 03:39:27,890 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 03:39:27,902 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 03:39:27,975 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 03:39:27,977 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 03:39:28,210 WARN L181 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 13 [2019-01-14 03:39:28,268 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 03:39:28,268 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 03:39:28,273 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,273 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 03:39:28,297 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 03:39:28,297 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,326 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,327 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~i~0=0} Honda state: {ULTIMATE.start_main_~i~0=0} Generalized eigenvectors: [{ULTIMATE.start_main_~i~0=-1}, {ULTIMATE.start_main_~i~0=-5}, {ULTIMATE.start_main_~i~0=7}] Lambdas: [1, 1, 1] Nus: [0, 0] 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 03:39:28,348 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,348 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,353 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,353 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet1=0} Honda state: {ULTIMATE.start_main_#t~nondet1=0} 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 03:39:28,375 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,375 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,397 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,397 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~n~0=0} Honda state: {ULTIMATE.start_main_~n~0=1} 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 03:39:28,408 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,408 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,426 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,427 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 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 03:39:28,451 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,451 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,456 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,456 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Honda state: {ULTIMATE.start_main_~x~0=0, ULTIMATE.start___VERIFIER_assert_~cond=1, ULTIMATE.start___VERIFIER_assert_#in~cond=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:28,478 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,478 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,483 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,483 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post2=0} Honda state: {ULTIMATE.start_main_#t~post2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 03:39:28,503 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 03:39:28,503 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 03:39:28,507 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 03:39:28,508 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~y~0=0} Honda state: {ULTIMATE.start_main_~y~0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] [2019-01-14 03:39:28,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 03:39:28 BoogieIcfgContainer [2019-01-14 03:39:28,552 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 03:39:28,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 03:39:28,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 03:39:28,552 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 03:39:28,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 03:39:26" (3/4) ... [2019-01-14 03:39:28,557 INFO L141 WitnessPrinter]: Generating witness for non-termination counterexample [2019-01-14 03:39:28,595 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 03:39:28,596 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 03:39:28,597 INFO L168 Benchmark]: Toolchain (without parser) took 2709.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 947.3 MB in the beginning and 974.0 MB in the end (delta: -26.6 MB). Peak memory consumption was 88.2 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:28,598 INFO L168 Benchmark]: CDTParser took 0.15 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 03:39:28,598 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:28,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.70 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:28,600 INFO L168 Benchmark]: Boogie Preprocessor took 24.18 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:28,600 INFO L168 Benchmark]: RCFGBuilder took 415.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:28,601 INFO L168 Benchmark]: BuchiAutomizer took 1873.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.0 MB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. [2019-01-14 03:39:28,602 INFO L168 Benchmark]: Witness Printer took 43.70 ms. Allocated memory is still 1.1 GB. Free memory is still 974.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 03:39:28,606 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 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 40.70 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.18 ms. Allocated memory is still 1.0 GB. Free memory is still 936.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 415.49 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 114.8 MB). Free memory was 936.6 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1873.41 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 974.0 MB in the end (delta: 116.4 MB). Peak memory consumption was 116.4 MB. Max. memory is 11.5 GB. * Witness Printer took 43.70 ms. Allocated memory is still 1.1 GB. Free memory is still 974.0 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 Trivial decomposition into one nonterminating module. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.8s and 1 iterations. TraceHistogramMax:1. Analysis of lassos took 1.6s. 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: Lassos: inital28 mio100 ax100 hnf100 lsp66 ukn100 mio100 lsp100 div100 bol100 ite144 ukn100 eq199 hnf92 smp49 dnf95 smp100 tf104 neg100 sie100 LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 8 LassoNonterminationAnalysisSatUnbounded: 2 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.2s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - GeometricNonTerminationArgumentResult [Line: 1]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6377ee47=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3620b32e=0, x=0, n=0, y=0, i=0} State at position 1 is {cond=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6377ee47=0, \old(cond)=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3620b32e=0, x=0, n=1, y=0, i=0} For i>1, the state at position i is {cond=1 + sum_{k=0}^i 0, \result=0 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6377ee47=0 + sum_{k=0}^i 0, \old(cond)=1 + sum_{k=0}^i 0, org.eclipse.cdt.internal.core.dom.parser.c.CASTUnaryExpression@3620b32e=0 + sum_{k=0}^i 0, x=0 + sum_{k=0}^i 0, n=1 + sum_{k=0}^i 0, y=0 + sum_{k=0}^i 0, i=0 + sum_{k=0}^i -1 + -5 + 7} - StatisticsResult: NonterminationArgumentStatistics Unbounded Execution 3GEVs Lambdas: [1, 1, 1] Mus: [0, 0] - NonterminatingLassoResult [Line: 15]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L11] unsigned int i=0; [L12] int x=0, y=0; [L13] int n=__VERIFIER_nondet_int(); [L14] COND FALSE !(!(n>0)) [L15] i=0 Loop: [L15] COND TRUE 1 [L4] COND FALSE !(!(cond)) [L15] i++ End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...