./Ultimate.py --spec /storage/repos/svcomp/c/properties/termination.prp --file /storage/repos/svcomp/c/termination-crafted/Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i /storage/repos/svcomp/c/termination-crafted/Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 85f2e4e7c23d8b1ce231f007b62f4b33450b6456 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 02:14:32,416 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 02:14:32,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 02:14:32,435 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 02:14:32,435 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 02:14:32,436 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 02:14:32,438 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 02:14:32,440 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 02:14:32,442 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 02:14:32,443 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 02:14:32,444 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 02:14:32,445 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 02:14:32,446 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 02:14:32,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 02:14:32,448 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 02:14:32,449 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 02:14:32,451 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 02:14:32,452 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 02:14:32,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 02:14:32,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 02:14:32,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 02:14:32,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 02:14:32,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 02:14:32,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 02:14:32,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 02:14:32,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 02:14:32,463 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 02:14:32,464 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 02:14:32,465 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 02:14:32,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 02:14:32,467 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 02:14:32,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 02:14:32,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 02:14:32,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 02:14:32,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 02:14:32,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 02:14:32,471 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2019-01-14 02:14:32,488 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 02:14:32,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 02:14:32,490 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 02:14:32,490 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 02:14:32,491 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 02:14:32,491 INFO L131 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-01-14 02:14:32,491 INFO L133 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-01-14 02:14:32,491 INFO L133 SettingsManager]: * Use old map elimination=false [2019-01-14 02:14:32,491 INFO L133 SettingsManager]: * Use external solver (rank synthesis)=false [2019-01-14 02:14:32,492 INFO L133 SettingsManager]: * Use only trivial implications for array writes=true [2019-01-14 02:14:32,492 INFO L133 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-01-14 02:14:32,492 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 02:14:32,492 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-01-14 02:14:32,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 02:14:32,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-01-14 02:14:32,493 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-14 02:14:32,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-01-14 02:14:32,494 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 02:14:32,494 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 02:14:32,494 INFO L133 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-01-14 02:14:32,494 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 02:14:32,494 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 02:14:32,495 INFO L133 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-01-14 02:14:32,496 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-01-14 02:14:32,496 INFO L133 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85f2e4e7c23d8b1ce231f007b62f4b33450b6456 [2019-01-14 02:14:32,534 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 02:14:32,559 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 02:14:32,564 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 02:14:32,566 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 02:14:32,566 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 02:14:32,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/termination-crafted/Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c [2019-01-14 02:14:32,631 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f3b9f5e9/c706b0abb2e24539addc290fe922eb16/FLAG6466dc6bf [2019-01-14 02:14:33,056 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 02:14:33,056 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/termination-crafted/Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c [2019-01-14 02:14:33,064 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f3b9f5e9/c706b0abb2e24539addc290fe922eb16/FLAG6466dc6bf [2019-01-14 02:14:33,410 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3f3b9f5e9/c706b0abb2e24539addc290fe922eb16 [2019-01-14 02:14:33,414 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 02:14:33,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 02:14:33,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:33,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 02:14:33,420 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 02:14:33,421 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,424 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f0e8c39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33, skipping insertion in model container [2019-01-14 02:14:33,424 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,432 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 02:14:33,450 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 02:14:33,666 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:33,671 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 02:14:33,697 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 02:14:33,717 INFO L195 MainTranslator]: Completed translation [2019-01-14 02:14:33,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33 WrapperNode [2019-01-14 02:14:33,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 02:14:33,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:33,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 02:14:33,720 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 02:14:33,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,769 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 02:14:33,770 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 02:14:33,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 02:14:33,770 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 02:14:33,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... [2019-01-14 02:14:33,803 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 02:14:33,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 02:14:33,804 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 02:14:33,804 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 02:14:33,805 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 02:14:33,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 02:14:34,162 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 02:14:34,162 INFO L286 CfgBuilder]: Removed 5 assue(true) statements. [2019-01-14 02:14:34,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:34 BoogieIcfgContainer [2019-01-14 02:14:34,164 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 02:14:34,164 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-01-14 02:14:34,164 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-01-14 02:14:34,168 INFO L276 PluginConnector]: BuchiAutomizer initialized [2019-01-14 02:14:34,168 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:34,169 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.01 02:14:33" (1/3) ... [2019-01-14 02:14:34,170 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49fcbced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:34, skipping insertion in model container [2019-01-14 02:14:34,170 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:34,170 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 02:14:33" (2/3) ... [2019-01-14 02:14:34,170 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@49fcbced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.01 02:14:34, skipping insertion in model container [2019-01-14 02:14:34,171 INFO L102 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-01-14 02:14:34,171 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:34" (3/3) ... [2019-01-14 02:14:34,172 INFO L375 chiAutomizerObserver]: Analyzing ICFG Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c [2019-01-14 02:14:34,232 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 02:14:34,233 INFO L374 BuchiCegarLoop]: Interprodecural is true [2019-01-14 02:14:34,233 INFO L375 BuchiCegarLoop]: Hoare is false [2019-01-14 02:14:34,233 INFO L376 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-01-14 02:14:34,233 INFO L377 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 02:14:34,233 INFO L378 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 02:14:34,234 INFO L379 BuchiCegarLoop]: Difference is false [2019-01-14 02:14:34,234 INFO L380 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 02:14:34,234 INFO L383 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-01-14 02:14:34,247 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:14:34,268 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:34,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:34,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:34,277 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:34,277 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:14:34,277 INFO L442 BuchiCegarLoop]: ======== Iteration 1============ [2019-01-14 02:14:34,277 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2019-01-14 02:14:34,278 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:34,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:34,279 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:34,279 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-01-14 02:14:34,279 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:14:34,288 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 8#L18true assume !!(main_~x~0 >= -2147483647); 10#L22-2true [2019-01-14 02:14:34,288 INFO L796 eck$LassoCheckResult]: Loop: 10#L22-2true assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 4#L22true assume main_~x~0 >= 0;main_~b~0 := 1; 10#L22-2true [2019-01-14 02:14:34,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:34,294 INFO L82 PathProgramCache]: Analyzing trace with hash 998, now seen corresponding path program 1 times [2019-01-14 02:14:34,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:34,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:34,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:34,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:34,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1444, now seen corresponding path program 1 times [2019-01-14 02:14:34,407 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:34,407 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:34,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:34,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:34,422 INFO L82 PathProgramCache]: Analyzing trace with hash 959561, now seen corresponding path program 1 times [2019-01-14 02:14:34,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:34,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:34,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,424 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:34,424 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:34,555 WARN L181 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2019-01-14 02:14:34,670 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:14:34,671 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:14:34,671 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:14:34,672 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:14:34,672 INFO L127 ssoRankerPreferences]: Use exernal solver: true [2019-01-14 02:14:34,672 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:34,672 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:14:34,672 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:14:34,672 INFO L131 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c_Iteration1_Loop [2019-01-14 02:14:34,673 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:14:34,673 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:14:34,696 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:34,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:34,734 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:34,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:34,771 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,107 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:14:35,108 INFO L412 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,121 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:35,122 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:35,150 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:35,150 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~true_1=1} Honda state: {v_rep~unnamed0~0~true_1=1} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,158 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:35,158 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:35,179 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:35,179 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {v_rep~unnamed0~0~false_1=0} Honda state: {v_rep~unnamed0~0~false_1=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,184 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:35,184 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:35,187 INFO L445 LassoAnalysis]: Proved nontermination for one component. [2019-01-14 02:14:35,187 INFO L448 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~nondet2=0} Honda state: {ULTIMATE.start_main_#t~nondet2=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,208 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2019-01-14 02:14:35,208 INFO L163 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,239 INFO L151 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2019-01-14 02:14:35,239 INFO L163 nArgumentSynthesizer]: Using integer mode. [2019-01-14 02:14:35,291 INFO L452 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2019-01-14 02:14:35,292 INFO L216 LassoAnalysis]: Preferences: [2019-01-14 02:14:35,293 INFO L124 ssoRankerPreferences]: Compute integeral hull: false [2019-01-14 02:14:35,293 INFO L125 ssoRankerPreferences]: Enable LassoPartitioneer: true [2019-01-14 02:14:35,293 INFO L126 ssoRankerPreferences]: Term annotations enabled: false [2019-01-14 02:14:35,294 INFO L127 ssoRankerPreferences]: Use exernal solver: false [2019-01-14 02:14:35,294 INFO L128 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-01-14 02:14:35,294 INFO L129 ssoRankerPreferences]: Dump SMT script to file: false [2019-01-14 02:14:35,294 INFO L130 ssoRankerPreferences]: Path of dumped script: [2019-01-14 02:14:35,294 INFO L131 ssoRankerPreferences]: Filename of dumped script: Lobnya-Boolean-Reordered_true-termination_true-valid-memsafety.c_Iteration1_Loop [2019-01-14 02:14:35,294 INFO L132 ssoRankerPreferences]: MapElimAlgo: Frank [2019-01-14 02:14:35,295 INFO L282 LassoAnalysis]: Starting lasso preprocessing... [2019-01-14 02:14:35,297 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,303 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,320 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,331 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,352 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2019-01-14 02:14:35,666 WARN L181 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2019-01-14 02:14:35,672 INFO L300 LassoAnalysis]: Preprocessing complete. [2019-01-14 02:14:35,678 INFO L497 LassoAnalysis]: Using template 'affine'. [2019-01-14 02:14:35,681 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:35,683 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:35,684 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:35,684 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:35,684 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:35,689 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:14:35,690 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:14:35,699 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:14:35,700 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:35,700 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:35,701 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:35,702 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:35,702 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:35,705 INFO L402 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2019-01-14 02:14:35,705 INFO L403 nArgumentSynthesizer]: A total of 2 supporting invariants were added. [2019-01-14 02:14:35,715 INFO L530 LassoAnalysis]: Proving termination failed for this template and these settings. [2019-01-14 02:14:35,716 INFO L122 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2019-01-14 02:14:35,717 INFO L339 nArgumentSynthesizer]: Template has degree 0. [2019-01-14 02:14:35,718 INFO L352 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2019-01-14 02:14:35,718 INFO L205 nArgumentSynthesizer]: 1 stem disjuncts [2019-01-14 02:14:35,718 INFO L206 nArgumentSynthesizer]: 1 loop disjuncts [2019-01-14 02:14:35,719 INFO L207 nArgumentSynthesizer]: 2 template conjuncts. [2019-01-14 02:14:35,720 INFO L402 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2019-01-14 02:14:35,720 INFO L403 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2019-01-14 02:14:35,728 INFO L421 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2019-01-14 02:14:35,732 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2019-01-14 02:14:35,733 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 1 variables to zero. [2019-01-14 02:14:35,735 INFO L437 nArgumentSynthesizer]: Simplifying supporting invariants... [2019-01-14 02:14:35,735 INFO L440 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2019-01-14 02:14:35,736 INFO L518 LassoAnalysis]: Proved termination. [2019-01-14 02:14:35,736 INFO L520 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~x~0) = 1*ULTIMATE.start_main_~x~0 Supporting invariants [] [2019-01-14 02:14:35,738 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2019-01-14 02:14:35,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:14:35,802 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:14:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:14:35,824 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 02:14:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:14:35,975 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 [2019-01-14 02:14:35,976 INFO L72 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2019-01-14 02:14:36,197 INFO L76 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 32 states and 39 transitions. Complement of second has 7 states. [2019-01-14 02:14:36,200 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 [2019-01-14 02:14:36,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2019-01-14 02:14:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 22 transitions. [2019-01-14 02:14:36,205 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 2 letters. [2019-01-14 02:14:36,206 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:36,206 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 4 letters. Loop has 2 letters. [2019-01-14 02:14:36,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:36,207 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 22 transitions. Stem has 2 letters. Loop has 4 letters. [2019-01-14 02:14:36,207 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2019-01-14 02:14:36,208 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 32 states and 39 transitions. [2019-01-14 02:14:36,212 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:36,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 32 states to 9 states and 12 transitions. [2019-01-14 02:14:36,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 5 [2019-01-14 02:14:36,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 6 [2019-01-14 02:14:36,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 12 transitions. [2019-01-14 02:14:36,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is not deterministic. [2019-01-14 02:14:36,219 INFO L706 BuchiCegarLoop]: Abstraction has 9 states and 12 transitions. [2019-01-14 02:14:36,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states and 12 transitions. [2019-01-14 02:14:36,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-01-14 02:14:36,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-01-14 02:14:36,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 11 transitions. [2019-01-14 02:14:36,242 INFO L729 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-01-14 02:14:36,242 INFO L609 BuchiCegarLoop]: Abstraction has 8 states and 11 transitions. [2019-01-14 02:14:36,242 INFO L442 BuchiCegarLoop]: ======== Iteration 2============ [2019-01-14 02:14:36,242 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states and 11 transitions. [2019-01-14 02:14:36,243 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 2 [2019-01-14 02:14:36,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-01-14 02:14:36,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-01-14 02:14:36,243 INFO L867 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-01-14 02:14:36,244 INFO L868 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2019-01-14 02:14:36,244 INFO L794 eck$LassoCheckResult]: Stem: 79#ULTIMATE.startENTRY havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_~x~0, main_~b~0;havoc main_~x~0;havoc main_~b~0;main_~x~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~b~0 := main_#t~nondet1;havoc main_#t~nondet1; 80#L18 assume !!(main_~x~0 >= -2147483647); 86#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2019-01-14 02:14:36,244 INFO L796 eck$LassoCheckResult]: Loop: 81#L22 assume !(main_~x~0 >= 0);main_~b~0 := 0; 82#L22-2 assume !!(0 != main_~b~0);main_~b~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~x~0 := main_~x~0 - 1; 81#L22 [2019-01-14 02:14:36,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:36,244 INFO L82 PathProgramCache]: Analyzing trace with hash 30953, now seen corresponding path program 1 times [2019-01-14 02:14:36,245 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:36,245 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:36,246 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:36,247 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:36,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:36,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:36,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 02:14:36,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 02:14:36,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1596, now seen corresponding path program 1 times [2019-01-14 02:14:36,257 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 02:14:36,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 02:14:36,258 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:36,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 02:14:36,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 02:14:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 02:14:36,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 02:14:36,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 02:14:36,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-01-14 02:14:36,318 INFO L811 eck$LassoCheckResult]: loop already infeasible [2019-01-14 02:14:36,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 02:14:36,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 02:14:36,322 INFO L87 Difference]: Start difference. First operand 8 states and 11 transitions. cyclomatic complexity: 5 Second operand 3 states. [2019-01-14 02:14:36,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 02:14:36,339 INFO L93 Difference]: Finished difference Result 8 states and 9 transitions. [2019-01-14 02:14:36,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 02:14:36,341 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 8 states and 9 transitions. [2019-01-14 02:14:36,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:14:36,342 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 8 states to 0 states and 0 transitions. [2019-01-14 02:14:36,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2019-01-14 02:14:36,342 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2019-01-14 02:14:36,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2019-01-14 02:14:36,343 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-01-14 02:14:36,343 INFO L706 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:36,343 INFO L729 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:36,343 INFO L609 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 02:14:36,343 INFO L442 BuchiCegarLoop]: ======== Iteration 3============ [2019-01-14 02:14:36,343 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2019-01-14 02:14:36,343 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2019-01-14 02:14:36,344 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2019-01-14 02:14:36,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.01 02:14:36 BoogieIcfgContainer [2019-01-14 02:14:36,350 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-01-14 02:14:36,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 02:14:36,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 02:14:36,351 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 02:14:36,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 02:14:34" (3/4) ... [2019-01-14 02:14:36,355 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-14 02:14:36,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 02:14:36,356 INFO L168 Benchmark]: Toolchain (without parser) took 2941.88 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 951.4 MB in the beginning and 971.2 MB in the end (delta: -19.9 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:36,358 INFO L168 Benchmark]: CDTParser took 0.46 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. [2019-01-14 02:14:36,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:36,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:36,360 INFO L168 Benchmark]: Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:36,360 INFO L168 Benchmark]: RCFGBuilder took 360.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:36,361 INFO L168 Benchmark]: BuchiAutomizer took 2185.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.2 MB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. [2019-01-14 02:14:36,362 INFO L168 Benchmark]: Witness Printer took 5.03 ms. Allocated memory is still 1.1 GB. Free memory is still 971.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 02:14:36,367 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 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 302.38 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.31 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.21 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 360.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 91.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -129.5 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 2185.74 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 971.2 MB in the end (delta: 98.9 MB). Peak memory consumption was 98.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.03 ms. Allocated memory is still 1.1 GB. Free memory is still 971.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (1 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function x and consists of 5 locations. 1 modules have a trivial ranking function, the largest among these consists of 3 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 1. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 8 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 18 SDtfs, 13 SDslu, 13 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI1 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital17 mio100 ax170 hnf100 lsp34 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq170 hnf94 smp100 dnf150 smp100 tf108 neg92 sie116 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 20ms VariablesStem: 1 VariablesLoop: 0 DisjunctsStem: 1 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 6 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 3 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 1 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.1s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...