./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/ldv-regression/test_while_int.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/ldv-regression/test_while_int.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 5a78e5ac8a70d10b48fa6c5955c8640de4def14b .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-29 02:04:27,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-29 02:04:27,618 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-29 02:04:27,633 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-29 02:04:27,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-29 02:04:27,635 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-29 02:04:27,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-29 02:04:27,638 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-29 02:04:27,640 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-29 02:04:27,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-29 02:04:27,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-29 02:04:27,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-29 02:04:27,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-29 02:04:27,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-29 02:04:27,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-29 02:04:27,648 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-29 02:04:27,649 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-29 02:04:27,650 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-29 02:04:27,652 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-29 02:04:27,654 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-29 02:04:27,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-29 02:04:27,657 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-29 02:04:27,659 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-29 02:04:27,659 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-29 02:04:27,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-29 02:04:27,663 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-29 02:04:27,663 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-29 02:04:27,664 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-29 02:04:27,665 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-29 02:04:27,666 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-29 02:04:27,666 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-29 02:04:27,667 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-29 02:04:27,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-29 02:04:27,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-29 02:04:27,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-29 02:04:27,670 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-29 02:04:27,671 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-29 02:04:27,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-29 02:04:27,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-29 02:04:27,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-29 02:04:27,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-29 02:04:27,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-07-29 02:04:27,692 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-29 02:04:27,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-29 02:04:27,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-29 02:04:27,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-29 02:04:27,695 INFO L138 SettingsManager]: * Use SBE=true [2020-07-29 02:04:27,695 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-07-29 02:04:27,695 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-07-29 02:04:27,696 INFO L138 SettingsManager]: * Use old map elimination=false [2020-07-29 02:04:27,696 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-07-29 02:04:27,696 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-07-29 02:04:27,696 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-07-29 02:04:27,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-29 02:04:27,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-29 02:04:27,697 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-07-29 02:04:27,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-29 02:04:27,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-29 02:04:27,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-29 02:04:27,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-07-29 02:04:27,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-07-29 02:04:27,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-07-29 02:04:27,699 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-29 02:04:27,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-29 02:04:27,700 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-07-29 02:04:27,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-29 02:04:27,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-07-29 02:04:27,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-29 02:04:27,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-29 02:04:27,701 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-07-29 02:04:27,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-29 02:04:27,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-29 02:04:27,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-29 02:04:27,702 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-07-29 02:04:27,703 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-07-29 02:04:27,704 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a78e5ac8a70d10b48fa6c5955c8640de4def14b [2020-07-29 02:04:28,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-29 02:04:28,015 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-29 02:04:28,019 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-29 02:04:28,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-29 02:04:28,021 INFO L275 PluginConnector]: CDTParser initialized [2020-07-29 02:04:28,022 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_while_int.i [2020-07-29 02:04:28,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69262334/577831a8af9e4b72ae7f2bf60c1b5181/FLAG9eacdcbee [2020-07-29 02:04:28,551 INFO L306 CDTParser]: Found 1 translation units. [2020-07-29 02:04:28,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_while_int.i [2020-07-29 02:04:28,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69262334/577831a8af9e4b72ae7f2bf60c1b5181/FLAG9eacdcbee [2020-07-29 02:04:28,940 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f69262334/577831a8af9e4b72ae7f2bf60c1b5181 [2020-07-29 02:04:28,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-29 02:04:28,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-29 02:04:28,948 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-29 02:04:28,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-29 02:04:28,952 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-29 02:04:28,954 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:04:28" (1/1) ... [2020-07-29 02:04:28,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36d3055d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:28, skipping insertion in model container [2020-07-29 02:04:28,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.07 02:04:28" (1/1) ... [2020-07-29 02:04:28,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-29 02:04:28,986 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-29 02:04:29,190 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:04:29,195 INFO L203 MainTranslator]: Completed pre-run [2020-07-29 02:04:29,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-29 02:04:29,229 INFO L208 MainTranslator]: Completed translation [2020-07-29 02:04:29,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29 WrapperNode [2020-07-29 02:04:29,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-29 02:04:29,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-29 02:04:29,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-29 02:04:29,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-29 02:04:29,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,246 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-29 02:04:29,325 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-29 02:04:29,325 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-29 02:04:29,325 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-29 02:04:29,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,347 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,348 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (1/1) ... [2020-07-29 02:04:29,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-29 02:04:29,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-29 02:04:29,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-29 02:04:29,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-29 02:04:29,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (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 [2020-07-29 02:04:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-29 02:04:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-29 02:04:29,596 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-29 02:04:29,596 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-07-29 02:04:29,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:04:29 BoogieIcfgContainer [2020-07-29 02:04:29,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-29 02:04:29,601 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-07-29 02:04:29,601 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-07-29 02:04:29,605 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-07-29 02:04:29,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:04:29,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 29.07 02:04:28" (1/3) ... [2020-07-29 02:04:29,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b7bb2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:04:29, skipping insertion in model container [2020-07-29 02:04:29,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:04:29,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.07 02:04:29" (2/3) ... [2020-07-29 02:04:29,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b7bb2c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 29.07 02:04:29, skipping insertion in model container [2020-07-29 02:04:29,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-07-29 02:04:29,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:04:29" (3/3) ... [2020-07-29 02:04:29,611 INFO L371 chiAutomizerObserver]: Analyzing ICFG test_while_int.i [2020-07-29 02:04:29,662 INFO L356 BuchiCegarLoop]: Interprodecural is true [2020-07-29 02:04:29,663 INFO L357 BuchiCegarLoop]: Hoare is false [2020-07-29 02:04:29,663 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-07-29 02:04:29,663 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-29 02:04:29,663 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-29 02:04:29,663 INFO L361 BuchiCegarLoop]: Difference is false [2020-07-29 02:04:29,663 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-29 02:04:29,664 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-07-29 02:04:29,674 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 02:04:29,695 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:04:29,695 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:04:29,695 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:04:29,701 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 02:04:29,701 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 02:04:29,701 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2020-07-29 02:04:29,702 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 02:04:29,704 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:04:29,704 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:04:29,704 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:04:29,704 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1] [2020-07-29 02:04:29,705 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-07-29 02:04:29,712 INFO L794 eck$LassoCheckResult]: Stem: 3#ULTIMATE.startENTRYtrue havoc main_#res;havoc main_#t~post0, main_~i~0;main_~i~0 := 0; 10#L4true [2020-07-29 02:04:29,713 INFO L796 eck$LassoCheckResult]: Loop: 10#L4true assume !!(main_~i~0 < 5);main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b; 8#L18true assume 0 != check_error_~b; 10#L4true [2020-07-29 02:04:29,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:04:29,718 INFO L82 PathProgramCache]: Analyzing trace with hash 32, now seen corresponding path program 1 times [2020-07-29 02:04:29,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:04:29,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099891676] [2020-07-29 02:04:29,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:04:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,791 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,809 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:04:29,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:04:29,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1284, now seen corresponding path program 1 times [2020-07-29 02:04:29,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:04:29,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857302050] [2020-07-29 02:04:29,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:04:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,844 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,846 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:04:29,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:04:29,848 INFO L82 PathProgramCache]: Analyzing trace with hash 31075, now seen corresponding path program 1 times [2020-07-29 02:04:29,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-29 02:04:29,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008810245] [2020-07-29 02:04:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-29 02:04:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,857 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-29 02:04:29,864 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-29 02:04:29,866 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-29 02:04:30,011 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-07-29 02:04:30,148 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:04:30,149 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:04:30,149 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:04:30,149 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:04:30,150 INFO L129 ssoRankerPreferences]: Use exernal solver: true [2020-07-29 02:04:30,150 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,151 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:04:30,151 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:04:30,151 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2020-07-29 02:04:30,151 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:04:30,152 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:04:30,184 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,194 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,207 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,453 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:04:30,454 INFO L404 LassoAnalysis]: Checking for nontermination... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,462 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:04:30,463 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:04:30,472 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:04:30,472 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_main_#t~post0=0} Honda state: {ULTIMATE.start_main_#t~post0=0} Generalized eigenvectors: [] Lambdas: [] Nus: [] No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,516 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:04:30,516 INFO L160 nArgumentSynthesizer]: Using integer mode. [2020-07-29 02:04:30,526 INFO L437 LassoAnalysis]: Proved nontermination for one component. [2020-07-29 02:04:30,527 INFO L440 LassoAnalysis]: Non-Termination argument consisting of: Initial state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} Honda state: {ULTIMATE.start_check_error_#in~b=1, ULTIMATE.start_check_error_~b=1} 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 [2020-07-29 02:04:30,566 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 0 Nilpotent components: true [2020-07-29 02:04:30,567 INFO L160 nArgumentSynthesizer]: Using integer mode. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:04:30,626 INFO L148 nArgumentSynthesizer]: Nontermination analysis: NONLINEAR Allow bounded executions: true Number of generalized eigenvectors: 3 Nilpotent components: true [2020-07-29 02:04:30,627 INFO L160 nArgumentSynthesizer]: Using integer mode. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,705 INFO L444 LassoAnalysis]: Proving nontermination failed: No geometric nontermination argument exists. [2020-07-29 02:04:30,707 INFO L210 LassoAnalysis]: Preferences: [2020-07-29 02:04:30,708 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-07-29 02:04:30,708 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-07-29 02:04:30,708 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-07-29 02:04:30,708 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-07-29 02:04:30,708 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,708 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-07-29 02:04:30,709 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-07-29 02:04:30,709 INFO L133 ssoRankerPreferences]: Filename of dumped script: test_while_int.i_Iteration1_Loop [2020-07-29 02:04:30,709 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-07-29 02:04:30,709 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-07-29 02:04:30,720 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,726 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,744 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-07-29 02:04:30,913 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-07-29 02:04:30,919 INFO L489 LassoAnalysis]: Using template 'affine'. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,926 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:04:30,929 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:04:30,929 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:04:30,930 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:04:30,930 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-07-29 02:04:30,930 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:04:30,933 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-07-29 02:04:30,933 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-07-29 02:04:30,937 INFO L522 LassoAnalysis]: Proving termination failed for this template and these settings. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-07-29 02:04:30,973 INFO L120 nArgumentSynthesizer]: Termination Analysis Settings: Termination analysis: LINEAR_WITH_GUESSES Number of strict supporting invariants: 0 Number of non-strict supporting invariants: 1 Consider only non-deceasing supporting invariants: true Simplify termination arguments: true Simplify supporting invariants: trueOverapproximate stem: false [2020-07-29 02:04:30,975 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-07-29 02:04:30,975 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-07-29 02:04:30,975 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-07-29 02:04:30,976 INFO L204 nArgumentSynthesizer]: 2 loop disjuncts [2020-07-29 02:04:30,976 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-07-29 02:04:30,979 INFO L401 nArgumentSynthesizer]: We have 4 Motzkin's Theorem applications. [2020-07-29 02:04:30,979 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-07-29 02:04:30,984 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-07-29 02:04:30,992 INFO L443 ModelExtractionUtils]: Simplification made 3 calls to the SMT solver. [2020-07-29 02:04:30,992 INFO L444 ModelExtractionUtils]: 0 out of 3 variables were initially zero. Simplification set additionally 0 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-29 02:04:30,998 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... [2020-07-29 02:04:30,998 INFO L438 nArgumentSynthesizer]: Removed 0 redundant supporting invariants from a total of 0. [2020-07-29 02:04:30,998 INFO L510 LassoAnalysis]: Proved termination. [2020-07-29 02:04:30,999 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~i~0) = -2*ULTIMATE.start_main_~i~0 + 9 Supporting invariants [] [2020-07-29 02:04:31,040 INFO L297 tatePredicateManager]: 0 out of 0 supporting invariants were superfluous and have been removed [2020-07-29 02:04:31,045 INFO L393 LassoCheck]: Loop: "assume !!(main_~i~0 < 5);main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b;" "assume 0 != check_error_~b;" [2020-07-29 02:04:31,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:04:31,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-29 02:04:31,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:04:31,092 WARN L261 TraceCheckSpWp]: Trace formula consists of 4 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-29 02:04:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:04:31,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:04:31,107 INFO L280 TraceCheckUtils]: 0: Hoare triple {18#unseeded} havoc main_#res;havoc main_#t~post0, main_~i~0;main_~i~0 := 0; {18#unseeded} is VALID [2020-07-29 02:04:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:04:31,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-29 02:04:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-29 02:04:31,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-29 02:04:31,232 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#(>= oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 9))} assume !!(main_~i~0 < 5);main_#t~post0 := main_~i~0;main_~i~0 := 1 + main_#t~post0;havoc main_#t~post0;check_error_#in~b := (if 3 != main_~i~0 then 1 else 0);havoc check_error_~b;check_error_~b := check_error_#in~b; {36#(and (<= (+ (div (+ oldRank0 (- 9)) (- 2)) 1) ULTIMATE.start_main_~i~0) (<= (div (+ oldRank0 (- 9)) (- 2)) 4))} is VALID [2020-07-29 02:04:31,234 INFO L280 TraceCheckUtils]: 1: Hoare triple {36#(and (<= (+ (div (+ oldRank0 (- 9)) (- 2)) 1) ULTIMATE.start_main_~i~0) (<= (div (+ oldRank0 (- 9)) (- 2)) 4))} assume 0 != check_error_~b; {31#(or (and (> oldRank0 (+ (* (- 2) ULTIMATE.start_main_~i~0) 9)) (>= oldRank0 0)) unseeded)} is VALID [2020-07-29 02:04:31,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-29 02:04:31,246 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-29 02:04:31,257 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 3 edges. 3 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-29 02:04:31,259 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,262 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,269 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 [2020-07-29 02:04:31,270 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 8 states. Second operand 3 states. [2020-07-29 02:04:31,334 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 8 states.. Second operand 3 states. Result 23 states and 30 transitions. Complement of second has 5 states. [2020-07-29 02:04:31,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 4 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-07-29 02:04:31,334 INFO L123 tractBuchiDifference]: Start testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:04:31,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 8 states. [2020-07-29 02:04:31,336 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:04:31,336 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:04:31,336 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:04:31,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 3 states. [2020-07-29 02:04:31,340 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 02:04:31,340 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-07-29 02:04:31,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-07-29 02:04:31,341 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. [2020-07-29 02:04:31,342 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:04:31,342 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:04:31,344 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 8 states. [2020-07-29 02:04:31,346 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 3 [2020-07-29 02:04:31,347 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 3 examples of accepted words. [2020-07-29 02:04:31,347 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 3 states. [2020-07-29 02:04:31,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 3 [2020-07-29 02:04:31,351 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 2 examples of accepted words. [2020-07-29 02:04:31,351 INFO L70 LassoExtractor]: Start lassoExtractor. Operand 23 states and 30 transitions. cyclomatic complexity: 9 [2020-07-29 02:04:31,351 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 23 states and 30 transitions. cyclomatic complexity: 9 [2020-07-29 02:04:31,352 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:04:31,352 INFO L86 LassoExtractor]: Finished lassoExtractor. Found 0 examples of accepted words. [2020-07-29 02:04:31,352 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,352 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,353 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,353 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,354 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,354 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,355 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 02:04:31,355 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 23 letters. Loop has 23 letters. [2020-07-29 02:04:31,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 23 letters. Loop has 23 letters. [2020-07-29 02:04:31,356 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,356 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 02:04:31,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 8 letters. Loop has 8 letters. [2020-07-29 02:04:31,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,357 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 8 letters. Loop has 8 letters. [2020-07-29 02:04:31,357 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:04:31,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:04:31,358 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,358 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 4 letters. Loop has 4 letters. [2020-07-29 02:04:31,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:04:31,359 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,359 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:04:31,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 3 letters. Loop has 3 letters. [2020-07-29 02:04:31,360 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,360 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 02:04:31,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 2 letters. [2020-07-29 02:04:31,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,361 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 2 letters. Loop has 2 letters. [2020-07-29 02:04:31,361 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,362 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,362 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,363 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:04:31,363 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:04:31,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 2 letters. Loop has 1 letters. [2020-07-29 02:04:31,364 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,364 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 8 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states. Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,365 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 23 states and 30 transitions. cyclomatic complexity: 9 Stem has 1 letters. Loop has 1 letters. [2020-07-29 02:04:31,365 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,366 INFO L161 tractBuchiDifference]: Finished testing correctness of buchiDifferenceNCSBLazy3 [2020-07-29 02:04:31,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-29 02:04:31,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-29 02:04:31,370 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 1 letters. Loop has 2 letters. [2020-07-29 02:04:31,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 3 letters. Loop has 2 letters. [2020-07-29 02:04:31,371 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,371 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 4 states and 22 transitions. Stem has 1 letters. Loop has 4 letters. [2020-07-29 02:04:31,372 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-07-29 02:04:31,373 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 23 states and 30 transitions. cyclomatic complexity: 9 [2020-07-29 02:04:31,377 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:04:31,380 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 23 states to 0 states and 0 transitions. [2020-07-29 02:04:31,382 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-07-29 02:04:31,382 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-07-29 02:04:31,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-07-29 02:04:31,383 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-07-29 02:04:31,383 INFO L688 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:04:31,383 INFO L711 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:04:31,383 INFO L591 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-29 02:04:31,383 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2020-07-29 02:04:31,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-07-29 02:04:31,384 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-07-29 02:04:31,384 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-07-29 02:04:31,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 29.07 02:04:31 BoogieIcfgContainer [2020-07-29 02:04:31,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-07-29 02:04:31,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-29 02:04:31,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-29 02:04:31,400 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-29 02:04:31,401 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.07 02:04:29" (3/4) ... [2020-07-29 02:04:31,405 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-29 02:04:31,405 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-29 02:04:31,409 INFO L168 Benchmark]: Toolchain (without parser) took 2462.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.5 MB in the beginning and 965.4 MB in the end (delta: -11.9 MB). Peak memory consumption was 122.3 MB. Max. memory is 11.5 GB. [2020-07-29 02:04:31,410 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:04:31,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2020-07-29 02:04:31,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 93.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-29 02:04:31,415 INFO L168 Benchmark]: Boogie Preprocessor took 25.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:04:31,415 INFO L168 Benchmark]: RCFGBuilder took 250.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2020-07-29 02:04:31,417 INFO L168 Benchmark]: BuchiAutomizer took 1798.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.4 MB in the end (delta: 145.8 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. [2020-07-29 02:04:31,418 INFO L168 Benchmark]: Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 965.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-29 02:04:31,434 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 941.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 93.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -189.2 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 250.31 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1798.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 965.4 MB in the end (delta: 145.8 MB). Peak memory consumption was 145.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.22 ms. Allocated memory is still 1.2 GB. Free memory is still 965.4 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 1 terminating modules (0 trivial, 1 deterministic, 0 nondeterministic). One deterministic module has affine ranking function -2 * i + 9 and consists of 4 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization No data available. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 0 states and ocurred in iteration 1. Nontrivial modules had stage [1, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 6 SDtfs, 8 SDslu, 5 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT1 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: Lassos: inital20 mio100 ax100 hnf100 lsp69 ukn100 mio100 lsp100 div100 bol100 ite100 ukn100 eq171 hnf95 smp100 dnf165 smp92 tf105 neg94 sie117 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: sat Degree: 0 Time: 30ms VariablesStem: 0 VariablesLoop: 2 DisjunctsStem: 1 DisjunctsLoop: 2 SupportingInvariants: 0 MotzkinApplications: 4 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 2 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...