./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loop-lit/mcmillan2006.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/loop-lit/mcmillan2006.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 0e5db84b9f9b462c8c6fbeb8b453779946c1329e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 19:13:29,507 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:13:29,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:13:29,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:13:29,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:13:29,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:13:29,539 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:13:29,541 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:13:29,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:13:29,544 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:13:29,545 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:13:29,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:13:29,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:13:29,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:13:29,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:13:29,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:13:29,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:13:29,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:13:29,557 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:13:29,559 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:13:29,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:13:29,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:13:29,568 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:13:29,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:13:29,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:13:29,578 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:13:29,578 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:13:29,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:13:29,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:13:29,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:13:29,583 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:13:29,584 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:13:29,585 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:13:29,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:13:29,593 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:13:29,595 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:13:29,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:13:29,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:13:29,600 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:13:29,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:13:29,603 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:13:29,604 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:13:29,657 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:13:29,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:13:29,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:13:29,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:13:29,660 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:13:29,660 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:13:29,660 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:13:29,660 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:13:29,661 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:13:29,661 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:13:29,661 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:13:29,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:13:29,662 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:13:29,662 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:13:29,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:13:29,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:13:29,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:13:29,663 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:13:29,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:13:29,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:13:29,664 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:13:29,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:13:29,665 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:13:29,665 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:13:29,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:13:29,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:13:29,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:13:29,666 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:13:29,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:13:29,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:13:29,667 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:13:29,667 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:13:29,669 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:13:29,669 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 -> 0e5db84b9f9b462c8c6fbeb8b453779946c1329e [2020-10-19 19:13:30,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:13:30,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:13:30,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:13:30,023 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:13:30,024 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:13:30,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/mcmillan2006.i [2020-10-19 19:13:30,089 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b046d3e/207dfc4856054f7eb458ec62231718b7/FLAG2ead38eec [2020-10-19 19:13:30,557 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:13:30,557 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/mcmillan2006.i [2020-10-19 19:13:30,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b046d3e/207dfc4856054f7eb458ec62231718b7/FLAG2ead38eec [2020-10-19 19:13:30,904 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b046d3e/207dfc4856054f7eb458ec62231718b7 [2020-10-19 19:13:30,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:13:30,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:13:30,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:30,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:13:30,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:13:30,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:30" (1/1) ... [2020-10-19 19:13:30,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64424a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:30, skipping insertion in model container [2020-10-19 19:13:30,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:13:30" (1/1) ... [2020-10-19 19:13:30,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:13:30,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:13:31,179 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:31,191 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:13:31,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:13:31,226 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:13:31,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31 WrapperNode [2020-10-19 19:13:31,226 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:13:31,227 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:31,227 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:13:31,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:13:31,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,304 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,323 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:13:31,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:13:31,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:13:31,324 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:13:31,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (1/1) ... [2020-10-19 19:13:31,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:13:31,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:13:31,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:13:31,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:13:31,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (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 [2020-10-19 19:13:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:13:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:13:31,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-19 19:13:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-19 19:13:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:13:31,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:13:31,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-19 19:13:31,638 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:13:31,639 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-19 19:13:31,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:31 BoogieIcfgContainer [2020-10-19 19:13:31,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:13:31,642 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:13:31,642 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:13:31,646 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:13:31,647 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:31,647 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:13:30" (1/3) ... [2020-10-19 19:13:31,648 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379f5806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:31, skipping insertion in model container [2020-10-19 19:13:31,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:31,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:13:31" (2/3) ... [2020-10-19 19:13:31,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@379f5806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:13:31, skipping insertion in model container [2020-10-19 19:13:31,649 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:13:31,649 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:31" (3/3) ... [2020-10-19 19:13:31,651 INFO L373 chiAutomizerObserver]: Analyzing ICFG mcmillan2006.i [2020-10-19 19:13:31,719 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:13:31,719 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:13:31,720 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:13:31,720 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:13:31,720 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:13:31,720 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:13:31,720 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:13:31,720 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:13:31,741 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 19:13:31,768 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-10-19 19:13:31,768 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:31,768 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:31,777 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:13:31,777 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:13:31,777 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:13:31,777 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 17 states. [2020-10-19 19:13:31,779 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 9 [2020-10-19 19:13:31,779 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:31,780 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:31,780 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:13:31,780 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1] [2020-10-19 19:13:31,790 INFO L794 eck$LassoCheckResult]: Stem: 14#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 13#L-1true havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 7#L28true assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 4#L30-3true [2020-10-19 19:13:31,791 INFO L796 eck$LassoCheckResult]: Loop: 4#L30-3true assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 8#L30-2true main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 4#L30-3true [2020-10-19 19:13:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2020-10-19 19:13:31,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:31,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562342303] [2020-10-19 19:13:31,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:31,969 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:31,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:31,987 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:32,011 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:32,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:32,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1443, now seen corresponding path program 1 times [2020-10-19 19:13:32,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:32,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824724156] [2020-10-19 19:13:32,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:32,022 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:32,030 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:32,033 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:32,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:32,039 INFO L82 PathProgramCache]: Analyzing trace with hash 28695942, now seen corresponding path program 1 times [2020-10-19 19:13:32,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:32,040 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984294144] [2020-10-19 19:13:32,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:32,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:32,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:32,094 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:32,487 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2020-10-19 19:13:32,622 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-10-19 19:13:32,636 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:32,637 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:32,638 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:32,638 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:32,638 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:32,638 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:32,639 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:32,639 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:32,639 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration1_Lasso [2020-10-19 19:13:32,639 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:32,640 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:32,666 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,678 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,935 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2020-10-19 19:13:32,977 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,980 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,984 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,987 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,991 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,994 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:32,998 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:33,002 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:33,405 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:33,413 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:13:33,421 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 [2020-10-19 19:13:33,425 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:33,425 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:33,426 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:33,426 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:33,427 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:33,430 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:33,430 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,439 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 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:33,483 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 [2020-10-19 19:13:33,485 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:33,486 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:33,486 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:33,486 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:33,491 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:33,491 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,501 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 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:33,542 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 [2020-10-19 19:13:33,545 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:33,545 INFO L203 nArgumentSynthesizer]: 2 stem disjuncts [2020-10-19 19:13:33,545 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:33,546 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:33,554 INFO L401 nArgumentSynthesizer]: We have 8 Motzkin's Theorem applications. [2020-10-19 19:13:33,554 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,573 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 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:33,618 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 [2020-10-19 19:13:33,620 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:33,621 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:33,621 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:33,621 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:33,625 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:33,625 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,631 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 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:33,667 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 [2020-10-19 19:13:33,670 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:33,670 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:33,670 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:33,670 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:33,680 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:33,681 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,703 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:33,748 INFO L443 ModelExtractionUtils]: Simplification made 13 calls to the SMT solver. [2020-10-19 19:13:33,748 INFO L444 ModelExtractionUtils]: 10 out of 22 variables were initially zero. Simplification set additionally 9 variables to zero. 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) [2020-10-19 19:13:33,755 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:33,761 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:13:33,761 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:33,763 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~0) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~0 Supporting invariants [] [2020-10-19 19:13:33,859 INFO L297 tatePredicateManager]: 11 out of 11 supporting invariants were superfluous and have been removed [2020-10-19 19:13:33,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:33,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:33,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:34,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:34,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:34,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:34,054 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 [2020-10-19 19:13:34,056 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 17 states. Second operand 3 states. [2020-10-19 19:13:34,138 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 17 states.. Second operand 3 states. Result 44 states and 57 transitions. Complement of second has 7 states. [2020-10-19 19:13:34,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 5 states 1 stem states 2 non-accepting loop states 1 accepting loop states [2020-10-19 19:13:34,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:13:34,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 39 transitions. [2020-10-19 19:13:34,146 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 2 letters. [2020-10-19 19:13:34,147 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:34,148 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 5 letters. Loop has 2 letters. [2020-10-19 19:13:34,148 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:34,149 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 5 states and 39 transitions. Stem has 3 letters. Loop has 4 letters. [2020-10-19 19:13:34,149 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:34,150 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 44 states and 57 transitions. [2020-10-19 19:13:34,159 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:34,166 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 44 states to 11 states and 13 transitions. [2020-10-19 19:13:34,167 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 8 [2020-10-19 19:13:34,167 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 19:13:34,168 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 13 transitions. [2020-10-19 19:13:34,169 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:34,169 INFO L691 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-19 19:13:34,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states and 13 transitions. [2020-10-19 19:13:34,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-19 19:13:34,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 19:13:34,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-19 19:13:34,202 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-19 19:13:34,203 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-19 19:13:34,203 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:13:34,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 13 transitions. [2020-10-19 19:13:34,204 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:34,205 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:34,205 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:34,205 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1] [2020-10-19 19:13:34,205 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:13:34,206 INFO L794 eck$LassoCheckResult]: Stem: 151#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 147#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 148#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 152#L30-3 assume !(main_~i~0 < main_~n~0); 149#L30-4 main_~i~1 := 0; 150#L31-3 [2020-10-19 19:13:34,206 INFO L796 eck$LassoCheckResult]: Loop: 150#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 157#L19 assume !(0 == __VERIFIER_assert_~cond); 155#L19-2 havoc main_#t~mem7; 156#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 150#L31-3 [2020-10-19 19:13:34,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,206 INFO L82 PathProgramCache]: Analyzing trace with hash 28695884, now seen corresponding path program 1 times [2020-10-19 19:13:34,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808263006] [2020-10-19 19:13:34,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,221 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,237 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:34,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1830257, now seen corresponding path program 1 times [2020-10-19 19:13:34,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634087668] [2020-10-19 19:13:34,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,249 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,256 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,259 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:34,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1304177980, now seen corresponding path program 1 times [2020-10-19 19:13:34,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67010190] [2020-10-19 19:13:34,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:34,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:34,332 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67010190] [2020-10-19 19:13:34,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:13:34,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-19 19:13:34,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483750130] [2020-10-19 19:13:34,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:13:34,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-19 19:13:34,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-19 19:13:34,424 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. cyclomatic complexity: 4 Second operand 5 states. [2020-10-19 19:13:34,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:13:34,468 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-10-19 19:13:34,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-19 19:13:34,470 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 15 transitions. [2020-10-19 19:13:34,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:34,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 12 states and 13 transitions. [2020-10-19 19:13:34,472 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 9 [2020-10-19 19:13:34,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 9 [2020-10-19 19:13:34,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 13 transitions. [2020-10-19 19:13:34,472 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:34,472 INFO L691 BuchiCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-10-19 19:13:34,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states and 13 transitions. [2020-10-19 19:13:34,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-10-19 19:13:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-19 19:13:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-10-19 19:13:34,475 INFO L714 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-10-19 19:13:34,475 INFO L594 BuchiCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-10-19 19:13:34,476 INFO L427 BuchiCegarLoop]: ======== Iteration 3============ [2020-10-19 19:13:34,476 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 11 states and 12 transitions. [2020-10-19 19:13:34,477 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 4 [2020-10-19 19:13:34,477 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:13:34,477 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:13:34,478 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-19 19:13:34,478 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2020-10-19 19:13:34,479 INFO L794 eck$LassoCheckResult]: Stem: 190#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string0.base, #t~string0.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string0.base, #t~string0.offset, 1);call write~init~int(0, #t~string0.base, 1 + #t~string0.offset, 1);call #t~string1.base, #t~string1.offset := #Ultimate.allocOnStack(9); 186#L-1 havoc main_#res;havoc main_#t~nondet3, main_#t~malloc4.base, main_#t~malloc4.offset, main_#t~post5, main_~i~0, main_#t~mem7, main_#t~post6, main_~i~1, main_~n~0, main_~x~0.base, main_~x~0.offset;main_~n~0 := main_#t~nondet3;havoc main_#t~nondet3; 187#L28 assume !!(0 <= main_~n~0 && main_~n~0 <= 1000);call main_#t~malloc4.base, main_#t~malloc4.offset := #Ultimate.allocOnHeap(4 * main_~n~0);main_~x~0.base, main_~x~0.offset := main_#t~malloc4.base, main_#t~malloc4.offset;main_~i~0 := 0; 191#L30-3 assume !!(main_~i~0 < main_~n~0);call write~int(0, main_~x~0.base, main_~x~0.offset + 4 * main_~i~0, 4); 192#L30-2 main_#t~post5 := main_~i~0;main_~i~0 := 1 + main_#t~post5;havoc main_#t~post5; 193#L30-3 assume !(main_~i~0 < main_~n~0); 188#L30-4 main_~i~1 := 0; 189#L31-3 [2020-10-19 19:13:34,479 INFO L796 eck$LassoCheckResult]: Loop: 189#L31-3 assume !!(main_~i~1 < main_~n~0);call main_#t~mem7 := read~int(main_~x~0.base, main_~x~0.offset + 4 * main_~i~1, 4);__VERIFIER_assert_#in~cond := (if 0 == main_#t~mem7 then 1 else 0);havoc __VERIFIER_assert_~cond;__VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; 196#L19 assume !(0 == __VERIFIER_assert_~cond); 194#L19-2 havoc main_#t~mem7; 195#L31-2 main_#t~post6 := main_~i~1;main_~i~1 := 1 + main_#t~post6;havoc main_#t~post6; 189#L31-3 [2020-10-19 19:13:34,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1806996910, now seen corresponding path program 1 times [2020-10-19 19:13:34,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,480 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641451431] [2020-10-19 19:13:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,496 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,510 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,515 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:34,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1830257, now seen corresponding path program 2 times [2020-10-19 19:13:34,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266160419] [2020-10-19 19:13:34,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,529 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:34,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:34,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1358699362, now seen corresponding path program 1 times [2020-10-19 19:13:34,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:13:34,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360255563] [2020-10-19 19:13:34,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:13:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:13:34,569 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:13:34,574 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:13:34,989 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2020-10-19 19:13:35,092 INFO L210 LassoAnalysis]: Preferences: [2020-10-19 19:13:35,092 INFO L126 ssoRankerPreferences]: Compute integeral hull: false [2020-10-19 19:13:35,092 INFO L127 ssoRankerPreferences]: Enable LassoPartitioneer: true [2020-10-19 19:13:35,092 INFO L128 ssoRankerPreferences]: Term annotations enabled: false [2020-10-19 19:13:35,092 INFO L129 ssoRankerPreferences]: Use exernal solver: false [2020-10-19 19:13:35,093 INFO L130 ssoRankerPreferences]: SMT solver command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:35,093 INFO L131 ssoRankerPreferences]: Dump SMT script to file: false [2020-10-19 19:13:35,093 INFO L132 ssoRankerPreferences]: Path of dumped script: [2020-10-19 19:13:35,093 INFO L133 ssoRankerPreferences]: Filename of dumped script: mcmillan2006.i_Iteration3_Lasso [2020-10-19 19:13:35,093 INFO L134 ssoRankerPreferences]: MapElimAlgo: Frank [2020-10-19 19:13:35,093 INFO L274 LassoAnalysis]: Starting lasso preprocessing... [2020-10-19 19:13:35,099 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,103 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,106 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,110 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,113 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,343 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-10-19 19:13:35,374 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,378 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,383 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,387 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,390 INFO L141 MapEliminator]: Using MapEliminator with SimplificationTechnique=SIMPLIFY_DDA XnfConversionTechnique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION AddInequalities=false OnlyTrivialImplicationsArrayWrite=true OnlyTrivialImplicationsForModifiedArguments=true OnlyArgumentsInFormula=true [2020-10-19 19:13:35,774 INFO L292 LassoAnalysis]: Preprocessing complete. [2020-10-19 19:13:35,775 INFO L489 LassoAnalysis]: Using template 'affine'. 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) [2020-10-19 19:13:35,787 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 [2020-10-19 19:13:35,789 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:35,789 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:35,790 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:35,790 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:35,790 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:35,791 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:35,792 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:35,794 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:35,841 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 Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:35,843 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:35,843 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:35,843 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:35,843 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:35,843 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:35,844 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:35,844 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. [2020-10-19 19:13:35,846 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:35,896 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 [2020-10-19 19:13:35,899 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:35,899 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:35,899 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:35,899 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:35,900 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:35,901 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:35,901 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:35,903 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:35,957 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 [2020-10-19 19:13:35,960 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:35,960 INFO L351 nArgumentSynthesizer]: There is no stem transition; disabling supporting invariant generation. [2020-10-19 19:13:35,961 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:35,961 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:35,961 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:35,962 INFO L401 nArgumentSynthesizer]: We have 2 Motzkin's Theorem applications. [2020-10-19 19:13:35,962 INFO L402 nArgumentSynthesizer]: A total of 0 supporting invariants were added. Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:35,964 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:36,011 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 [2020-10-19 19:13:36,013 INFO L338 nArgumentSynthesizer]: Template has degree 0. [2020-10-19 19:13:36,014 INFO L203 nArgumentSynthesizer]: 1 stem disjuncts [2020-10-19 19:13:36,014 INFO L204 nArgumentSynthesizer]: 1 loop disjuncts [2020-10-19 19:13:36,014 INFO L205 nArgumentSynthesizer]: 2 template conjuncts. [2020-10-19 19:13:36,022 INFO L401 nArgumentSynthesizer]: We have 6 Motzkin's Theorem applications. [2020-10-19 19:13:36,022 INFO L402 nArgumentSynthesizer]: A total of 2 supporting invariants were added. Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:36,039 INFO L420 nArgumentSynthesizer]: Found a termination argument, trying to simplify. [2020-10-19 19:13:36,098 INFO L443 ModelExtractionUtils]: Simplification made 22 calls to the SMT solver. [2020-10-19 19:13:36,099 INFO L444 ModelExtractionUtils]: 2 out of 28 variables were initially zero. Simplification set additionally 23 variables to zero. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2020-10-19 19:13:36,111 INFO L435 nArgumentSynthesizer]: Simplifying supporting invariants... Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:13:36,115 INFO L438 nArgumentSynthesizer]: Removed 2 redundant supporting invariants from a total of 2. [2020-10-19 19:13:36,115 INFO L510 LassoAnalysis]: Proved termination. [2020-10-19 19:13:36,115 INFO L512 LassoAnalysis]: Termination argument consisting of: Ranking function f(ULTIMATE.start_main_~n~0, ULTIMATE.start_main_~i~1) = 1*ULTIMATE.start_main_~n~0 - 1*ULTIMATE.start_main_~i~1 Supporting invariants [] [2020-10-19 19:13:36,191 INFO L297 tatePredicateManager]: 13 out of 13 supporting invariants were superfluous and have been removed [2020-10-19 19:13:36,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:13:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:36,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2020-10-19 19:13:36,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:13:36,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-19 19:13:36,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-19 19:13:36,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:13:36,250 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 [2020-10-19 19:13:36,250 INFO L71 iDifferenceNCSBLazy3]: Start buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3 Second operand 3 states. [2020-10-19 19:13:36,264 INFO L75 iDifferenceNCSBLazy3]: Finished buchiDifferenceNCSBLazy3. First operand 11 states and 12 transitions. cyclomatic complexity: 3. Second operand 3 states. Result 15 states and 17 transitions. Complement of second has 4 states. [2020-10-19 19:13:36,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: Buchi interpolant automaton has 3 states 1 stem states 1 non-accepting loop states 1 accepting loop states [2020-10-19 19:13:36,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-19 19:13:36,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 11 transitions. [2020-10-19 19:13:36,265 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 4 letters. [2020-10-19 19:13:36,265 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:36,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 11 letters. Loop has 4 letters. [2020-10-19 19:13:36,266 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:36,266 INFO L84 BuchiAccepts]: Start buchiAccepts Operand 3 states and 11 transitions. Stem has 7 letters. Loop has 8 letters. [2020-10-19 19:13:36,267 INFO L116 BuchiAccepts]: Finished buchiAccepts. [2020-10-19 19:13:36,267 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 15 states and 17 transitions. [2020-10-19 19:13:36,268 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:36,268 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 15 states to 0 states and 0 transitions. [2020-10-19 19:13:36,268 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 0 [2020-10-19 19:13:36,269 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 0 [2020-10-19 19:13:36,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 0 states and 0 transitions. [2020-10-19 19:13:36,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:13:36,269 INFO L691 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:36,269 INFO L714 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:36,269 INFO L594 BuchiCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-19 19:13:36,270 INFO L427 BuchiCegarLoop]: ======== Iteration 4============ [2020-10-19 19:13:36,270 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 0 states and 0 transitions. [2020-10-19 19:13:36,270 INFO L131 ngComponentsAnalysis]: Automaton has 0 accepting balls. 0 [2020-10-19 19:13:36,270 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is true [2020-10-19 19:13:36,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:13:36 BoogieIcfgContainer [2020-10-19 19:13:36,279 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:13:36,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:13:36,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:13:36,280 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:13:36,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:13:31" (3/4) ... [2020-10-19 19:13:36,285 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-19 19:13:36,285 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:13:36,288 INFO L168 Benchmark]: Toolchain (without parser) took 5377.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 215.5 MB). Free memory was 960.0 MB in the beginning and 990.0 MB in the end (delta: -30.1 MB). Peak memory consumption was 185.4 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,289 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:36,290 INFO L168 Benchmark]: CACSL2BoogieTranslator took 310.39 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,291 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,292 INFO L168 Benchmark]: Boogie Preprocessor took 25.13 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,293 INFO L168 Benchmark]: RCFGBuilder took 292.37 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,294 INFO L168 Benchmark]: BuchiAutomizer took 4637.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 990.0 MB in the end (delta: 118.3 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:13:36,295 INFO L168 Benchmark]: Witness Printer took 5.85 ms. Allocated memory is still 1.2 GB. Free memory is still 990.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:13:36,300 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 310.39 ms. Allocated memory is still 1.0 GB. Free memory was 960.0 MB in the beginning and 949.2 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 95.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 949.2 MB in the beginning and 1.1 GB in the end (delta: -185.9 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.13 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 292.37 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: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 4637.10 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 76.5 MB). Free memory was 1.1 GB in the beginning and 990.0 MB in the end (delta: 118.3 MB). Peak memory consumption was 194.8 MB. Max. memory is 11.5 GB. * Witness Printer took 5.85 ms. Allocated memory is still 1.2 GB. Free memory is still 990.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (1 trivial, 2 deterministic, 0 nondeterministic). One deterministic module has affine ranking function n + -1 * i and consists of 5 locations. One deterministic module has affine ranking function n + -1 * i and consists of 3 locations. 1 modules have a trivial ranking function, the largest among these consists of 5 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 4.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 3. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 11 states and ocurred in iteration 1. Nontrivial modules had stage [2, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 32 SDtfs, 29 SDslu, 31 SDs, 0 SdLazy, 29 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont0 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso2 LassoPreprocessingBenchmarks: Lassos: inital179 mio100 ax100 hnf99 lsp93 ukn71 mio100 lsp48 div100 bol100 ite100 ukn100 eq169 hnf91 smp98 dnf100 smp100 tf100 neg100 sie103 LassoTerminationAnalysisBenchmarks: ConstraintsSatisfiability: unsat Degree: 0 Time: 35ms VariablesStem: 5 VariablesLoop: 2 DisjunctsStem: 2 DisjunctsLoop: 1 SupportingInvariants: 2 MotzkinApplications: 8 LassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Termination proven Buchi Automizer proved that your program is terminating RESULT: Ultimate proved your program to be correct! Received shutdown request...