./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-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 73643ecf8e1581c13142517bcc63dc5d77c96d29 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2019-01-01 22:59:12,809 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-01 22:59:12,810 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-01 22:59:12,827 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-01 22:59:12,827 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-01 22:59:12,829 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-01 22:59:12,830 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-01 22:59:12,832 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-01 22:59:12,833 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-01 22:59:12,834 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-01 22:59:12,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-01 22:59:12,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-01 22:59:12,836 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-01 22:59:12,837 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-01 22:59:12,838 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-01 22:59:12,839 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-01 22:59:12,840 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-01 22:59:12,842 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-01 22:59:12,844 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-01 22:59:12,846 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-01 22:59:12,847 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-01 22:59:12,848 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-01 22:59:12,850 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-01 22:59:12,851 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-01 22:59:12,851 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-01 22:59:12,852 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-01 22:59:12,853 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-01 22:59:12,854 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-01 22:59:12,854 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-01 22:59:12,856 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-01 22:59:12,856 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-01 22:59:12,856 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-01 22:59:12,857 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-01 22:59:12,857 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-01 22:59:12,858 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-01 22:59:12,859 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-01 22:59:12,859 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-01-01 22:59:12,881 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-01 22:59:12,882 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-01 22:59:12,885 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-01 22:59:12,885 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-01 22:59:12,885 INFO L133 SettingsManager]: * Use SBE=true [2019-01-01 22:59:12,887 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-01 22:59:12,887 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-01 22:59:12,887 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-01 22:59:12,888 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-01 22:59:12,888 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-01 22:59:12,888 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-01 22:59:12,888 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-01 22:59:12,888 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-01 22:59:12,889 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-01 22:59:12,889 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-01 22:59:12,890 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-01 22:59:12,890 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-01 22:59:12,890 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-01 22:59:12,890 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-01 22:59:12,890 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-01 22:59:12,891 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-01 22:59:12,891 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-01 22:59:12,891 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-01 22:59:12,891 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-01 22:59:12,891 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-01 22:59:12,892 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-01 22:59:12,894 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-01 22:59:12,895 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-01 22:59:12,895 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-01 22:59:12,895 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-01 22:59:12,895 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-01 22:59:12,896 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-01 22:59:12,897 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 -> 73643ecf8e1581c13142517bcc63dc5d77c96d29 [2019-01-01 22:59:12,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-01 22:59:12,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-01 22:59:12,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-01 22:59:12,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-01 22:59:12,988 INFO L276 PluginConnector]: CDTParser initialized [2019-01-01 22:59:12,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.i [2019-01-01 22:59:13,057 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0006cd0f2/67c3c35f941542d7b86a8cdd36e3b13d/FLAG9d5fa345f [2019-01-01 22:59:13,548 INFO L307 CDTParser]: Found 1 translation units. [2019-01-01 22:59:13,548 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/terminator_02_false-unreach-call_true-termination.i [2019-01-01 22:59:13,555 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0006cd0f2/67c3c35f941542d7b86a8cdd36e3b13d/FLAG9d5fa345f [2019-01-01 22:59:13,899 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0006cd0f2/67c3c35f941542d7b86a8cdd36e3b13d [2019-01-01 22:59:13,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-01 22:59:13,904 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-01 22:59:13,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-01 22:59:13,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-01 22:59:13,910 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-01 22:59:13,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:59:13" (1/1) ... [2019-01-01 22:59:13,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@778b065d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:13, skipping insertion in model container [2019-01-01 22:59:13,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.01 10:59:13" (1/1) ... [2019-01-01 22:59:13,922 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-01 22:59:13,942 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-01 22:59:14,129 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:59:14,134 INFO L191 MainTranslator]: Completed pre-run [2019-01-01 22:59:14,153 INFO L204 PostProcessor]: Analyzing one entry point: main [2019-01-01 22:59:14,170 INFO L195 MainTranslator]: Completed translation [2019-01-01 22:59:14,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14 WrapperNode [2019-01-01 22:59:14,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-01 22:59:14,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-01 22:59:14,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-01 22:59:14,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-01 22:59:14,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,189 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-01 22:59:14,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-01 22:59:14,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-01 22:59:14,216 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-01 22:59:14,227 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,241 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,242 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... [2019-01-01 22:59:14,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-01 22:59:14,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-01 22:59:14,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-01 22:59:14,245 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-01 22:59:14,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:14,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-01 22:59:14,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-01 22:59:14,812 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-01 22:59:14,812 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-01 22:59:14,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:59:14 BoogieIcfgContainer [2019-01-01 22:59:14,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-01 22:59:14,814 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-01 22:59:14,814 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-01 22:59:14,820 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-01 22:59:14,821 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:59:14,821 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 01.01 10:59:13" (1/3) ... [2019-01-01 22:59:14,824 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5b4c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:59:14, skipping insertion in model container [2019-01-01 22:59:14,824 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:59:14,824 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.01 10:59:14" (2/3) ... [2019-01-01 22:59:14,825 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@d5b4c06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 01.01 10:59:14, skipping insertion in model container [2019-01-01 22:59:14,825 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-01 22:59:14,825 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:59:14" (3/3) ... [2019-01-01 22:59:14,826 INFO L375 chiAutomizerObserver]: Analyzing ICFG terminator_02_false-unreach-call_true-termination.i [2019-01-01 22:59:14,945 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-01 22:59:14,946 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-01 22:59:14,946 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-01 22:59:14,946 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-01 22:59:14,947 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-01 22:59:14,947 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-01 22:59:14,948 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-01 22:59:14,948 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-01 22:59:14,949 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-01 22:59:14,981 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 22:59:15,016 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:15,017 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:59:15,017 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:59:15,025 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 22:59:15,025 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:59:15,025 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-01 22:59:15,025 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states. [2019-01-01 22:59:15,027 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:15,027 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:59:15,027 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:59:15,028 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 22:59:15,028 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:59:15,035 INFO L794 eck$LassoCheckResult]: Stem: 5#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 10#L21-2true [2019-01-01 22:59:15,036 INFO L796 eck$LassoCheckResult]: Loop: 10#L21-2true assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 3#L21true assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 10#L21-2true [2019-01-01 22:59:15,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:15,043 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2019-01-01 22:59:15,045 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:15,046 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:15,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:15,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:15,150 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2019-01-01 22:59:15,150 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:15,150 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:15,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:15,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:15,176 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2019-01-01 22:59:15,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:15,176 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:15,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:15,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:15,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:15,325 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:15,326 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:15,326 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:15,326 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:15,327 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 22:59:15,327 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:15,327 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:15,327 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:15,327 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration1_Loop [2019-01-01 22:59:15,328 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:15,329 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:15,354 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:15,399 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:15,439 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:15,449 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:15,706 WARN L181 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-01 22:59:15,925 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:15,926 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:15,940 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:15,940 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:15,969 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:15,969 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~z~0=101} Honda state: {ULTIMATE.start_main_~z~0=101} Generalized eigenvectors: [] Lambdas: [] Nus: [] [MP z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:15,977 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:15,977 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:15,993 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:15,993 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Honda state: {ULTIMATE.start_main_~tmp~0=-191, ULTIMATE.start_main_#t~nondet3=-191} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:16,014 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:16,014 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:16,057 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 22:59:16,057 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:16,085 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 22:59:16,087 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:16,087 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:16,087 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:16,087 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:16,087 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:59:16,087 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:16,087 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:16,088 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:16,088 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration1_Loop [2019-01-01 22:59:16,088 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:16,088 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:16,090 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:16,096 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:16,116 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:16,139 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:16,316 WARN L181 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-01 22:59:16,357 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:16,362 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:59:16,364 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:16,366 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:16,366 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:16,367 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:16,367 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:16,367 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:16,369 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:16,370 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:16,374 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:59:16,375 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:16,376 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:16,376 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:16,376 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:16,376 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:16,376 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:16,377 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:16,377 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:16,384 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:59:16,389 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 22:59:16,389 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 22:59:16,392 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:59:16,392 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 22:59:16,392 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:59:16,393 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-01 22:59:16,394 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 22:59:16,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:16,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:16,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:16,548 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:16,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:16,738 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:16,740 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 10 states. Second operand 3 states. [2019-01-01 22:59:16,973 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 10 states.. Second operand 3 states. Result 35 states and 45 transitions. Complement of second has 8 states. [2019-01-01 22:59:16,976 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 [2019-01-01 22:59:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:16,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 19 transitions. [2019-01-01 22:59:16,981 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-01 22:59:16,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:16,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-01 22:59:16,982 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:16,982 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 19 transitions. Stem has 1 letters. Loop has 4 letters. [2019-01-01 22:59:16,983 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:16,984 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 35 states and 45 transitions. [2019-01-01 22:59:16,989 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:16,995 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 35 states to 7 states and 10 transitions. [2019-01-01 22:59:16,997 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 4 [2019-01-01 22:59:16,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 5 [2019-01-01 22:59:16,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 10 transitions. [2019-01-01 22:59:16,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:59:16,998 INFO L705 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 22:59:17,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states and 10 transitions. [2019-01-01 22:59:17,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-01-01 22:59:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-01-01 22:59:17,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 10 transitions. [2019-01-01 22:59:17,034 INFO L728 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 22:59:17,034 INFO L608 BuchiCegarLoop]: Abstraction has 7 states and 10 transitions. [2019-01-01 22:59:17,034 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-01 22:59:17,035 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 7 states and 10 transitions. [2019-01-01 22:59:17,035 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:17,035 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:59:17,036 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:59:17,036 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-01 22:59:17,036 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:59:17,037 INFO L794 eck$LassoCheckResult]: Stem: 86#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 87#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 82#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 83#L21-2 [2019-01-01 22:59:17,037 INFO L796 eck$LassoCheckResult]: Loop: 83#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 88#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 83#L21-2 [2019-01-01 22:59:17,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:17,037 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 1 times [2019-01-01 22:59:17,037 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:17,037 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:17,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:17,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:17,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 2 times [2019-01-01 22:59:17,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:17,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:17,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:17,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:17,094 INFO L82 PathProgramCache]: Analyzing trace with hash 29865320, now seen corresponding path program 1 times [2019-01-01 22:59:17,094 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:17,094 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:17,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,099 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:59:17,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:17,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:17,243 WARN L181 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2019-01-01 22:59:17,260 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:17,260 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:17,261 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:17,261 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:17,261 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 22:59:17,261 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:17,261 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:17,262 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:17,262 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration2_Loop [2019-01-01 22:59:17,262 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:17,262 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:17,264 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:17,276 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:17,285 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:17,295 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:17,810 WARN L181 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-01 22:59:17,883 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:17,883 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 [2019-01-01 22:59:17,887 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:17,888 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:17,903 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:17,903 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Honda state: {ULTIMATE.start_main_~tmp~0=-192, ULTIMATE.start_main_#t~nondet3=-192} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:17,924 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:17,924 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 22:59:17,951 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 22:59:17,952 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:17,975 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 22:59:17,977 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:17,977 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:17,977 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:17,977 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:17,977 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:59:17,978 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:17,978 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:17,978 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:17,978 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration2_Loop [2019-01-01 22:59:17,978 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:17,978 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:17,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,000 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,010 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,013 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,140 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:18,141 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:59:18,141 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:18,142 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:18,143 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:18,143 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:18,143 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:18,143 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:18,144 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:18,144 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:18,149 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:59:18,152 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 22:59:18,153 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 22:59:18,153 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:59:18,153 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 22:59:18,153 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:59:18,154 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-01 22:59:18,154 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 22:59:18,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:18,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:18,259 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:18,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:18,280 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:18,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:18,307 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:18,308 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-01-01 22:59:18,328 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 7 states and 10 transitions. cyclomatic complexity: 5. Second operand 3 states. Result 11 states and 16 transitions. Complement of second has 5 states. [2019-01-01 22:59:18,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:59:18,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:18,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-01-01 22:59:18,330 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-01 22:59:18,331 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:18,331 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-01 22:59:18,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:18,332 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 3 letters. Loop has 4 letters. [2019-01-01 22:59:18,332 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:18,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 16 transitions. [2019-01-01 22:59:18,333 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:18,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 11 states and 16 transitions. [2019-01-01 22:59:18,334 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 6 [2019-01-01 22:59:18,334 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-01-01 22:59:18,334 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 16 transitions. [2019-01-01 22:59:18,335 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:59:18,335 INFO L705 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-01-01 22:59:18,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 16 transitions. [2019-01-01 22:59:18,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-01 22:59:18,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-01 22:59:18,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 16 transitions. [2019-01-01 22:59:18,337 INFO L728 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-01-01 22:59:18,337 INFO L608 BuchiCegarLoop]: Abstraction has 11 states and 16 transitions. [2019-01-01 22:59:18,337 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-01 22:59:18,338 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 16 transitions. [2019-01-01 22:59:18,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-01 22:59:18,338 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:59:18,338 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:59:18,339 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [2, 2, 1] [2019-01-01 22:59:18,339 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:59:18,339 INFO L794 eck$LassoCheckResult]: Stem: 140#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 141#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 136#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 137#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 144#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 142#L21-2 [2019-01-01 22:59:18,339 INFO L796 eck$LassoCheckResult]: Loop: 142#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 143#L21 assume 0 != main_~tmp~0 % 256;main_#t~post4 := main_~x~0;main_~x~0 := 1 + main_#t~post4;havoc main_#t~post4; 142#L21-2 [2019-01-01 22:59:18,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:18,340 INFO L82 PathProgramCache]: Analyzing trace with hash 29865322, now seen corresponding path program 2 times [2019-01-01 22:59:18,340 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:18,340 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:18,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,341 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:18,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:18,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 3 times [2019-01-01 22:59:18,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:18,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:18,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,360 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:59:18,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:18,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1364196307, now seen corresponding path program 2 times [2019-01-01 22:59:18,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:18,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:18,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,369 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:59:18,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:18,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:18,453 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:18,453 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:18,453 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:18,453 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:18,453 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 22:59:18,454 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:18,454 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:18,454 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:18,454 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration3_Loop [2019-01-01 22:59:18,454 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:18,454 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:18,456 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,471 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,481 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,524 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,655 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:18,655 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2019-01-01 22:59:18,662 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:18,663 INFO L163 nArgumentSynthesizer]: Using integer mode. 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 [2019-01-01 22:59:18,689 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 22:59:18,689 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:18,711 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 22:59:18,713 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:18,713 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:18,713 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:18,713 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:18,713 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:59:18,714 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:18,714 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:18,714 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:18,714 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration3_Loop [2019-01-01 22:59:18,714 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:18,714 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:18,716 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,723 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:18,881 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2019-01-01 22:59:18,916 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:18,916 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:59:18,917 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:18,920 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:18,921 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:18,921 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:18,921 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:18,921 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:18,922 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:18,922 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:18,928 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:59:18,932 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 22:59:18,932 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. [2019-01-01 22:59:18,933 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:59:18,933 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 22:59:18,933 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:59:18,933 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = -2*ULTIMATE.start_main_~x~0 + 199 Supporting invariants [] [2019-01-01 22:59:18,935 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 22:59:18,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:18,991 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:19,017 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:19,018 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-01 22:59:19,034 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-01-01 22:59:19,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:59:19,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:19,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-01-01 22:59:19,037 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-01 22:59:19,037 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,038 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-01 22:59:19,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,063 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,074 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:19,086 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and with honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:19,086 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-01 22:59:19,107 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 13 states and 20 transitions. Complement of second has 5 states. [2019-01-01 22:59:19,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:59:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:19,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 6 transitions. [2019-01-01 22:59:19,108 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 6 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-01 22:59:19,108 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,108 INFO L642 RefineBuchi]: Bad chosen interpolant automaton: word not accepted [2019-01-01 22:59:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,138 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:19,166 INFO L152 lantAutomatonBouncer]: Defining Buchi interpolant automaton with scrooge nondeterminism in stemwith honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:19,166 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8 Second operand 3 states. [2019-01-01 22:59:19,181 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 16 transitions. cyclomatic complexity: 8. Second operand 3 states. Result 15 states and 23 transitions. Complement of second has 4 states. [2019-01-01 22:59:19,184 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:59:19,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:19,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 7 transitions. [2019-01-01 22:59:19,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 2 letters. [2019-01-01 22:59:19,185 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,185 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 7 letters. Loop has 2 letters. [2019-01-01 22:59:19,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,186 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 7 transitions. Stem has 5 letters. Loop has 4 letters. [2019-01-01 22:59:19,186 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,186 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 23 transitions. [2019-01-01 22:59:19,187 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 22:59:19,188 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 13 states and 19 transitions. [2019-01-01 22:59:19,188 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-01 22:59:19,188 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 7 [2019-01-01 22:59:19,188 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 19 transitions. [2019-01-01 22:59:19,191 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-01 22:59:19,191 INFO L705 BuchiCegarLoop]: Abstraction has 13 states and 19 transitions. [2019-01-01 22:59:19,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states and 19 transitions. [2019-01-01 22:59:19,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 5. [2019-01-01 22:59:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-01-01 22:59:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 7 transitions. [2019-01-01 22:59:19,192 INFO L728 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-01-01 22:59:19,193 INFO L608 BuchiCegarLoop]: Abstraction has 5 states and 7 transitions. [2019-01-01 22:59:19,193 INFO L442 BuchiCegarLoop]: ======== Iteration 4============ [2019-01-01 22:59:19,193 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 5 states and 7 transitions. [2019-01-01 22:59:19,193 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2019-01-01 22:59:19,193 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-01 22:59:19,195 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-01 22:59:19,195 INFO L866 BuchiCegarLoop]: Counterexample stem histogram [1] [2019-01-01 22:59:19,195 INFO L867 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-01 22:59:19,195 INFO L794 eck$LassoCheckResult]: Stem: 287#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~post4, main_#t~post5, main_#t~post6, main_~tmp~0, main_~x~0, main_~y~0, main_~z~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~y~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~z~0 := main_#t~nondet2;havoc main_#t~nondet2; 284#L21-2 [2019-01-01 22:59:19,195 INFO L796 eck$LassoCheckResult]: Loop: 284#L21-2 assume !!(main_~x~0 < 100 && 100 < main_~z~0);main_~tmp~0 := main_#t~nondet3;havoc main_#t~nondet3; 283#L21 assume !(0 != main_~tmp~0 % 256);main_#t~post5 := main_~x~0;main_~x~0 := main_#t~post5 - 1;havoc main_#t~post5;main_#t~post6 := main_~z~0;main_~z~0 := main_#t~post6 - 1;havoc main_#t~post6; 284#L21-2 [2019-01-01 22:59:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,197 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 2 times [2019-01-01 22:59:19,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:19,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:19,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,198 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:59:19,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1286, now seen corresponding path program 1 times [2019-01-01 22:59:19,203 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:19,203 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:19,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,204 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-01-01 22:59:19,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,212 INFO L82 PathProgramCache]: Analyzing trace with hash 31077, now seen corresponding path program 3 times [2019-01-01 22:59:19,212 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-01 22:59:19,212 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-01 22:59:19,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,213 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-01 22:59:19,213 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-01 22:59:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-01 22:59:19,281 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:19,281 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:19,281 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:19,281 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:19,282 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-01 22:59:19,282 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,282 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:19,282 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:19,282 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration4_Loop [2019-01-01 22:59:19,282 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:19,282 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:19,284 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,311 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,314 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,324 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,332 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,453 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:19,453 INFO L412 LassoAnalysis]: Checking for nontermination... 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 [2019-01-01 22:59:19,458 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:19,458 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:19,461 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:19,461 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post6=0} Honda state: {ULTIMATE.start_main_#t~post6=0} 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 [2019-01-01 22:59:19,482 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:19,482 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:19,484 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:19,485 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post5=0} Honda state: {ULTIMATE.start_main_#t~post5=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 [2019-01-01 22:59:19,505 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:19,505 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:19,513 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:19,514 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Honda state: {ULTIMATE.start_main_~tmp~0=-256, ULTIMATE.start_main_#t~nondet3=-256} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,540 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:19,541 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 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 15 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,571 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 22:59:19,571 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:19,583 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-01 22:59:19,584 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_~x~0=99} Honda state: {ULTIMATE.start_main_~x~0=99} Generalized eigenvectors: [{ULTIMATE.start_main_~x~0=-1}, {ULTIMATE.start_main_~x~0=0}, {ULTIMATE.start_main_~x~0=0}] Lambdas: [1, 8, 0] Nus: [0, 0] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 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 16 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,605 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-01 22:59:19,605 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 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 17 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,628 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-01 22:59:19,629 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-01 22:59:19,650 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-01 22:59:19,651 INFO L216 LassoAnalysis]: Preferences: [2019-01-01 22:59:19,651 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-01 22:59:19,651 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-01 22:59:19,652 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-01 22:59:19,652 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-01 22:59:19,652 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-01 22:59:19,652 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-01 22:59:19,652 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-01 22:59:19,652 INFO L131 ssoRankerPreferences]: Filename of dumped script: terminator_02_false-unreach-call_true-termination.i_Iteration4_Loop [2019-01-01 22:59:19,652 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-01 22:59:19,652 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-01 22:59:19,653 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,668 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,675 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,683 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,698 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-01 22:59:19,862 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-01 22:59:19,862 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-01 22:59:19,863 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:19,863 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:19,864 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:19,864 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:19,864 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:19,864 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:19,865 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:19,865 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:19,866 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:59:19,866 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:19,867 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:19,867 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:19,867 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:19,867 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:19,868 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:19,868 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:19,868 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:19,869 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:59:19,870 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:19,870 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:19,870 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:19,871 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:19,871 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:19,871 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:19,872 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:19,872 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:19,874 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:59:19,875 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:19,875 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:19,875 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:19,876 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:19,876 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:19,876 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:19,877 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:19,877 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:19,880 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-01 22:59:19,880 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-01 22:59:19,881 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-01 22:59:19,881 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-01 22:59:19,881 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-01 22:59:19,882 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-01 22:59:19,882 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-01 22:59:19,882 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-01 22:59:19,883 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-01 22:59:19,886 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-01 22:59:19,889 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-01 22:59:19,889 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-01 22:59:19,890 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-01 22:59:19,890 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-01 22:59:19,890 INFO L518 LassoAnalysis]: Proved termination. [2019-01-01 22:59:19,890 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~z~0) = 1*ULTIMATE.start_main_~z~0 Supporting invariants [] [2019-01-01 22:59:19,891 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-01 22:59:19,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-01 22:59:19,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,932 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-01 22:59:19,939 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-01 22:59:19,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-01 22:59:19,958 INFO L152 lantAutomatonBouncer]: Defining deterministic Buchi interpolant automaton with honda bouncer for stem and without honda bouncer for loop.1 stem predicates 2 loop predicates [2019-01-01 22:59:19,958 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3 Second operand 3 states. [2019-01-01 22:59:19,975 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 5 states and 7 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 11 states and 17 transitions. Complement of second has 4 states. [2019-01-01 22:59:19,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2019-01-01 22:59:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-01 22:59:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 5 transitions. [2019-01-01 22:59:19,978 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 2 letters. [2019-01-01 22:59:19,978 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 3 letters. Loop has 2 letters. [2019-01-01 22:59:19,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,979 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 5 transitions. Stem has 1 letters. Loop has 4 letters. [2019-01-01 22:59:19,979 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-01 22:59:19,980 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 11 states and 17 transitions. [2019-01-01 22:59:19,981 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:59:19,981 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 11 states to 0 states and 0 transitions. [2019-01-01 22:59:19,981 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-01 22:59:19,981 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-01 22:59:19,981 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-01 22:59:19,981 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-01 22:59:19,982 INFO L705 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:59:19,982 INFO L728 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:59:19,982 INFO L608 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-01 22:59:19,982 INFO L442 BuchiCegarLoop]: ======== Iteration 5============ [2019-01-01 22:59:19,982 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-01 22:59:19,982 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-01 22:59:19,982 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-01 22:59:19,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 01.01 10:59:19 BoogieIcfgContainer [2019-01-01 22:59:19,989 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-01 22:59:19,990 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-01 22:59:19,990 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-01 22:59:20,007 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-01 22:59:20,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.01 10:59:14" (3/4) ... [2019-01-01 22:59:20,012 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-01 22:59:20,012 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-01 22:59:20,013 INFO L168 Benchmark]: Toolchain (without parser) took 6109.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 952.7 MB in the beginning and 1.2 GB in the end (delta: -212.0 MB). Peak memory consumption was 309.2 MB. Max. memory is 11.5 GB. [2019-01-01 22:59:20,015 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. [2019-01-01 22:59:20,015 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.94 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-01 22:59:20,016 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:59:20,017 INFO L168 Benchmark]: Boogie Preprocessor took 29.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-01 22:59:20,017 INFO L168 Benchmark]: RCFGBuilder took 568.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-01 22:59:20,018 INFO L168 Benchmark]: BuchiAutomizer took 5175.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 749.3 MB in the end (delta: 317.7 MB). Peak memory consumption was 317.7 MB. Max. memory is 11.5 GB. [2019-01-01 22:59:20,022 INFO L168 Benchmark]: Witness Printer took 22.71 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 749.3 MB in the beginning and 1.2 GB in the end (delta: -415.4 MB). Peak memory consumption was 12.0 MB. Max. memory is 11.5 GB. [2019-01-01 22:59:20,027 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 265.94 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 42.96 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.07 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 568.40 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.0 MB in the beginning and 1.1 GB in the end (delta: -125.0 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 5175.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 749.3 MB in the end (delta: 317.7 MB). Peak memory consumption was 317.7 MB. Max. memory is 11.5 GB. * Witness Printer took 22.71 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 81.3 MB). Free memory was 749.3 MB in the beginning and 1.2 GB in the end (delta: -415.4 MB). Peak memory consumption was 12.0 MB. 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 4 terminating modules (0 trivial, 3 deterministic, 1 nondeterministic). One deterministic module has affine ranking function -2 * x + 199 and consists of 5 locations. One deterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. One deterministic module has affine ranking function z and consists of 3 locations. One nondeterministic module has affine ranking function -2 * x + 199 and consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.0s and 5 iterations. TraceHistogramMax:2. Analysis of lassos took 3.8s. Construction of modules took 0.2s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 3. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 2. Nontrivial modules had stage [3, 0, 1, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 25 SDtfs, 21 SDslu, 13 SDs, 0 SdLazy, 41 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT4 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital23 mio100 ax100 hnf100 lsp47 ukn100 mio100 lsp100 div463 bol100 ite100 ukn100 eq148 hnf47 smp82 dnf100 smp100 tf106 neg97 sie104 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 10ms VariablesStem: 0 VariablesLoop: 1 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 0 MotzkinApplications: 2 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 6 LassoNonterminationAnalysisSatUnbounded: 1 LassoNonterminationAnalysisUnsat: 4 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.3s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...